Author: RedKem Constructions Queensland

9 Questions to Ask Before Hiring a Custom Home Builder in Brisbane
Key Takeaways
- Asking comprehensive questions upfront ensures transparency and sets clear expectations.
- Prioritise builders with strong credentials, references, and a proven track record.
- Communication and flexibility are vital for a smooth custom home-building experience.
Introduction
Building a custom home is an exciting journey, especially in Brisbane, where homeowners value unique designs and personalised living spaces. Before committing to a builder, it’s important to ask the right questions. Doing so helps you understand their process, align expectations, avoid unexpected costs, and ensure your vision can be brought to life with confidence.
Why Asking the Right Questions Matters
Choosing a builder is one of the most critical decisions in your custom home journey. Asking targeted questions helps you:
- Avoid unexpected costs by understanding exactly what is included in your contract.
- Ensure you stay on track with timelines and avoid unnecessary delays.
- Gain confidence in your builder’s experience, credentials, and work quality.
- Establish clear communication channels to prevent miscommunication.
By investing time in due diligence before starting, you can prevent headaches later on.
Top 9 Questions to Ask Your Builder
1. What’s Included in the Contract?
RedKem guarantees fixed-price contracts with no hidden extras, and gives clients live access to their approved budget and variations through their online client portal.
Understanding what’s covered in your builder’s contract is essential to avoid surprises later on. Ask for detailed specifications about inclusions like:
- Materials and finishes
- Structural warranties
- Site preparation costs
- Landscaping and driveways
Ensure you also clarify what is not included so you can budget accordingly.
2. Can You Provide References or Past Projects?
Request examples of completed projects or client testimonials to gauge the builder’s expertise and reliability. Visit previous builds if possible, and ask past clients about their experience regarding:
- Build quality
- Communication and transparency
- Adherence to deadlines
A reputable builder should have a portfolio showcasing their craftsmanship.
3. What Is the Estimated Timeline?
RedKem’s process starts with an on-site consultation and design phase, then council approval documentation, with clients tracking progress the whole way via 24/7 online access, such as:
- Weather conditions
- Supply chain disruptions
- Permit approvals
- Design modifications
Having a realistic timeline helps manage expectations.
4. How Do You Handle Budget Changes?
Budget overruns can be a major concern. Ask about their process for managing budget adjustments due to unforeseen circumstances or changes in materials. Find out:
- How change requests are handled
- If additional costs require written approval
- Whether contingency funds are included in the budget
This ensures you maintain control over costs throughout the build.
5. Can I Make Changes During Construction?
Discuss flexibility for making modifications during construction and how such changes might impact costs or timelines. Some builders charge variation fees for mid-project adjustments. Ask:
- What changes are possible after construction begins?
- Are there cut-off points for modifications?
- How do changes affect the timeline and budget?
6. How Do You Ensure Quality Control?
RedKem’s guarantee that any defect gets a licensed inspection and rectification within 4 weeks, including:
- Site inspections
- Use of independent building certifiers
- Compliance with the National Construction Code
- Material sourcing and supplier reliability
A quality-focused builder will have strict measures in place to uphold high standards.
7. Are Permits and Approvals Included?
Confirm whether obtaining permits is part of their service or if you’ll need to handle this separately. A reliable builder should manage:
- Council approvals
- Engineering certifications
- Energy efficiency compliance
- Development application submissions
If not included, factor these into your timeline and budget.
8. What Happens If There Are Delays?
Ask about contingency plans for delays caused by weather, supply chain issues, or other unforeseen events. Find out:
- How delays are communicated to clients
- Whether there are penalties for excessive delays
- What proactive measures are taken to mitigate risks
9. How Will We Communicate Throughout the Project?
Clear communication is key to avoiding misunderstandings. Discuss whether updates will be provided via:
- Regular site meetings
- Emails and phone calls
- Project management software
Establishing a communication schedule ensures you stay informed throughout the process.
Conclusion
At RedKem Constructions, we pride ourselves on delivering high-quality custom homes with exceptional craftsmanship, transparent communication, and personalised service. Our experienced team works closely with homeowners throughout every stage of the project—from the initial design consultation to the final handover—ensuring every detail reflects your vision, lifestyle, and budget.
RedKem is a licensed, accredited Greensmart Professional (energy-efficient building) and holds QBCC Licence No. 127 89 92 — good trust signal right before the CTA.
If you’re planning a custom home, renovation, extension, or knockdown rebuild in Brisbane, RedKem Constructions is here to help. Explore our blog for more expert insights on custom home building, renovations, and construction tips, or contact the RedKem team today to discuss your project and take the first step towards building your dream home.

Location: Tingalpa, Brisbane, QLD
Phone: 1300 002 102
Website: www.redkem.com.au
Email: jared@redkem.com.au
05/08/2026

The Complete Guide to Home Extensions in Brisbane: Costs, Council Approvals & Process (2026)

If your family has outgrown your current home, moving isn’t your only option. For many Brisbane homeowners, a home extension is a smarter investment than buying another property. It allows you to create more living space, increase your property’s value, and stay in the neighbourhood you already love. Whether you’re planning a second-storey addition, extending your living room, building a larger kitchen, or adding a new bedroom, understanding the costs, council approvals, and construction process is essential before getting started. This complete guide explains everything you need to know before starting your Brisbane home extension project.

Why More Brisbane Homeowners Are Choosing Extensions Instead of Moving

With Brisbane property prices continuing to rise, along with stamp duty, moving costs, and limited land availability, many homeowners are choosing to extend their existing homes instead of relocating. A professionally designed home extension allows you to create additional space while staying in the neighbourhood you already know and love. Depending on your family’s needs, a home extension can help you:

Add extra bedrooms for a growing family
Build a larger, modern kitchen
Create an open-plan living and dining area
Add a dedicated home office
Add a second storey to maximise your block
Improve outdoor entertaining spaces
Increase your property’s long-term resale value

Before beginning your project, it’s a good idea to understand your potential budget. The B4U Build House Building & House Renovation Calculator is a useful planning tool that provides an estimated cost for home extensions, renovations, and new home builds across Australia, helping you set realistic expectations before speaking with a builder. Once you have a clearer understanding of your budget, partnering with an experienced Brisbane home extension specialist like RedKem Constructions ensures your project is thoughtfully designed, complies with council requirements, and is delivered to a high standard—allowing you to customise your existing home instead of compromising on a new one.

Types of Home Extensions

Ground Floor Extension

Ideal when your property has enough available land. Popular for:

Living Room extensions
Larger Kitchens
Dining Areas
Alfresco Areas
Guest Bedrooms

Second Storey Extension

Perfect when land is limited. Usually includes:

Master bedroom
Ensuite
Walk-in wardrobe
Children’s bedrooms
Home office

Although more expensive than ground-floor extensions due to additional structural work, second-storey additions maximise your existing block.

Queenslander Home Extensions

Many Brisbane suburbs feature traditional Queenslander homes. These projects require specialist experience to preserve architectural character while improving modern functionality.

How Much Does a Home Extension Cost in Brisbane?

One of the most common questions homeowners ask is: “How much will my extension cost?” The honest answer is that every project is different. Pricing depends on:

Factor	Impact on Cost
Extension size	High
Number of bathrooms	High
Kitchen relocation	High
Structural modifications	High
Roofing complexity	Medium
Site access	Medium
Soil conditions	Medium
Material selections	High
Engineering requirements	High

Want an Accurate Estimate for Your Home Extension? Every project is different. Get a tailored cost estimate based on your home, block, and extension plans. Contact our team today to discuss your project.

Request a Quote

What Council Approvals Are Required?

Many Brisbane home extensions require approvals before construction begins. Depending on your project, approvals may include:

Building Approval
Planning Approval
Engineering Certification
Energy Efficiency Compliance
Structural Design
Site Surveys

Requirements vary based on your property’s zoning, overlays, setbacks, and the type of extension proposed.

Working with an experienced builder helps ensure the correct approval pathway is followed from the beginning.

The Complete Home Extension Process

A successful home extension requires careful planning, expert design, and quality construction to ensure the new space blends seamlessly with your existing home. From the initial consultation and budgeting to council approvals and final handover, every stage plays an important role in delivering a smooth, stress-free building experience. At RedKem Constructions, we follow a proven step-by-step process to keep your project organised, transparent, and on track from start to finish. Here’s what you can expect throughout your home extension journey:

1. Initial Consultation

Discuss your goals, budget, and lifestyle requirements.

2. Site Inspection

Your builder assesses:

Existing structure
Roof Design
Foundation
Access
Services
Site constraints

3. Concept Design

Once your requirements are understood, a concept design is created to bring your vision to life. The design is tailored to complement your existing home, maximise available space, and suit your family’s current and future lifestyle needs before moving to detailed planning.

4. Preliminary Cost Estimate

Based on the proposed design, you’ll receive an initial estimate of the construction costs. This helps you understand the expected investment, review design options, and make informed decisions before proceeding with detailed documentation and approvals.

5. Detailed Plans & Engineering

After the concept design is approved, detailed architectural drawings, structural engineering plans, and project specifications are prepared. These documents ensure your extension complies with Australian building standards and provides builders with a clear construction roadmap.

6. Council & Building Approval

Your builder or designer will prepare and submit the required applications for council and building approvals. Obtaining the necessary permits before construction begins helps ensure your project complies with local planning regulations and avoids unnecessary delays.

7. Construction

Once approvals are in place, construction begins. Your builder coordinates all trades, manages the project schedule, oversees quality control, and keeps you informed throughout the build to ensure the extension is completed safely, efficiently, and to a high standard.

8. Final Inspection & Handover

After construction is complete, a final inspection is carried out to ensure all work meets the required standards and project specifications. Once everything is approved, your builder completes the handover, allowing you to enjoy your newly extended home with confidence.

How Long Does a Home Extension Take?

Typical timelines vary depending on project complexity.

Stage	Estimated Time
Consultation & Design	12–20 weeks
Approvals	3–8 weeks
Construction	3–8 months+

Larger or more complex projects may require additional time.

Common Mistakes Homeowners Make

Avoid these costly mistakes:

Choosing a builder based only on price
Underestimating approval requirements
Not allowing contingency in the budget
Poor planning of future family needs
Ignoring energy efficiency
Hiring builders without extension experience

Why Choosing the Right Builder Matters

Unlike new home construction, extensions involve integrating new work with an existing structure. An experienced extension builder understands:

Structural Integration
Existing Services
Engineering Challenges
Character Homes
Council Requirements
Live-in renovations
Quality finishes

Choosing a builder with proven extension experience can reduce delays, minimise disruptions, and improve the final outcome.

Why Homeowners Choose RedKem Constructions

RedKem Constructions specialises in custom home extensions and renovations across Brisbane. Homeowners choose RedKem because they offer:

Experienced home extension specialists
Custom design solutions
Transparent project management
Award-winning workmanship
GreenSmart building expertise
24/7 online project access
Extended 12-month maintenance warranty for added peace of mind.

Need Accurate Pricing Before You Build?

RedKem offers:

Service	Purpose
Consultation Package	Understand your options before committing
Proposal Package	Detailed construction pricing and specifications

This helps homeowners make informed decisions before construction begins.

Frequently Asked Questions.

Yes, in most cases. Extending avoids stamp duty, real estate agent fees, and relocation costs — expenses that often add up to tens of thousands of dollars when buying a new property in Brisbane.

Yes, most Brisbane home extensions need building approval, and some also require planning approval depending on your property’s zoning and the scope of work.

Most home extensions take 3–8 months+ to build, plus 16–20 weeks for design and 3–8 weeks for approvals. Larger or more complex projects can take longer.

Yes, in some cases. Ground floor extensions and smaller projects usually allow you to stay on-site, while major second-storey or structural work may require temporary relocation.

Call us on 1300 002 102

Get in touch via our contact page

27/07/2026

Home Renovation vs Knockdown Rebuild: Which Option Saves More Money in Brisbane?

For minor updates or single-room projects, renovating is almost always cheaper. But once you’re looking at a major structural renovation—new layout, new services, an extension, plus a full overhaul—a knockdown rebuild often works out similar in cost or even cheaper overall, because it removes the risk of hidden costs like asbestos, termite damage, and outdated wiring that regularly blow out renovation budgets.

There’s no single answer that fits every Brisbane home. The right choice depends on your block, the condition of your existing house, and what you actually want at the end of the project. This guide from RedKem Constructions breaks down real cost ranges, the hidden costs each option carries, and a simple framework for deciding which path saves you more money.

Before comparing renovation and rebuild costs, it can be helpful to get a rough estimate for your project. The online building cost calculator from B4U Build provides an initial indication of potential construction costs, giving you a practical starting point before seeking detailed quotes or a feasibility assessment.

Renovation Cost in Brisbane: What to Expect

If you’re still in the early planning stage, using the B4U Build online calculator can help you understand the approximate investment required for your project. While it isn’t a substitute for a professional quote, it can help you set realistic expectations before moving forward.

Home renovation costs in Australia typically run between $2,000 and $5,000 per square metre, depending on the scope of the work — a coat of paint and a kitchen refresh sits at the low end, while structural changes push costs toward the top of the range.

On top of the base construction cost, renovations carry several costs that are easy to underestimate early on:

Structural engineer reports: $1,800–$6,500
Council permits: $1,200–$4,000
Hidden issues allowance: typically an extra 20% on top of the quoted price
Project management fees: 10–15%
Contingency: 15–20%, and this is not optional — it’s where most renovation budgets actually blow out

The reason for that contingency buffer is simple: once walls come down, Brisbane’s older homes — particularly Queenslanders and post-war houses — often reveal problems that weren’t visible at quote stage. Termite damage, non-compliant or deteriorated wiring, and asbestos are the three most common surprises, and each one adds both cost and time to the project.

How RedKem Helps You Manage a Knockdown Rebuild

A knockdown rebuild has more moving parts than most homeowners expect — demolition, utility disconnection, approvals, design, and construction all need to line up in the right order. RedKem manages that whole process under one roof, so you’re not coordinating separate contractors and chasing separate quotes:

Fixed-price building contracts — once your design is locked in, your price is locked in too, which removes the budget uncertainty that catches out so many renovation projects.
End-to-end project management — from demolition and site preparation through to design, council approval, and construction, RedKem handles the sequencing so nothing stalls waiting on the next trade or permit.
Brisbane site experience — sloping blocks, older Queenslander footprints, and Brisbane City Council’s approval requirements are all part of RedKem’s day-to-day, which means fewer surprises at DA stage.
Energy-efficient, Greensmart-accredited builds — your new home is designed to outperform the current NCC standards from the ground up, so you get the efficiency gains a renovation usually can’t fully deliver.
A single point of contact — one team accountable for the whole project, from your first feasibility conversation to handover.

If you’re weighing up whether your Brisbane property is a better fit for renovation or rebuild, RedKem can walk you through a feasibility assessment and give you a realistic, fixed-price comparison before you commit either way.

The Real Comparison: Why “Cheaper on Paper” Isn’t the Full Story

Factor	Renovation	Knockdown Rebuild
Typical cost per m²	$2,000–$5,000	$2,900–$6,000
Cost certainty	Lower — hidden issues common	Higher — fixed-price contract
Design freedom Timeline	Limited by existing structure	Full design freedom
Can you stay on-site?	Weeks to 12+ months (scope-dependent)	No — full relocation required
Best suited to	Often, depending on scope	Homes with structural issues, outdated layouts, premium blocks
Energy efficiency	Limited by existing shell	Built to outperform current NCC standards from the ground up

A knockdown rebuild isn’t automatically cheaper, and a renovation isn’t automatically the safer bet — the deciding factor is usually the condition of your existing home. As a rough industry rule of thumb, if more than 50–60% of the existing structure would need to be demolished and rebuilt as part of a renovation, the economics of a full knockdown rebuild start to look considerably more compelling. Partial demolition-and-rebuild projects tend to combine the worst of both options — renovation’s cost uncertainty plus a rebuild’s demolition and construction costs.

When Renovating Saves You More Money

Your home only needs cosmetic updates — paint, flooring, a kitchen or bathroom refresh
You own a character home (common in Brisbane suburbs like Paddington and East Brisbane) and want to preserve heritage features
The structure is sound and you’re not planning to touch load-bearing walls.
You need to stay living in the home during work.

When a Knockdown Rebuild Saves You More Money

Your home has structural issues, extensive termite damage, or asbestos that would need remediation either way.
You want a full layout change that would otherwise require extensive structural engineering.
Your land is in a high-value Brisbane suburb and a new build would lift resale value more than a renovation would.
You want a home built to current energy-efficiency standards without the compromises of retrofitting an older shell.

Bottom Line

If your renovation wish list stays cosmetic, renovating will almost always save you money. But if your project starts creeping into “let’s also fix the wiring, extend the back, and reconfigure the whole ground floor” territory, it’s worth getting a proper comparison done before committing — because at that point, a knockdown rebuild can genuinely come out ahead, both in total cost and in the home you end up with.

The only reliable way to know which option wins for your specific property is a proper feasibility assessment: a building inspection, an accurate renovation scope, and a fixed-price rebuild quote to compare against it.

If you’re in Brisbane and weighing this decision up, RedKem Constructions can walk you through that comparison directly — a straightforward, fixed-price feasibility assessment that looks at your actual block and home, not a generic industry average, so you know exactly which option puts more money back in your pocket before you commit to either one.

Frequently Asked Questions

For minor to moderate renovations, renovating is typically cheaper. For major structural renovations, a knockdown rebuild is often similar in cost or cheaper once hidden costs are factored in, because it eliminates the risk of unforeseen structural issues.

Knockdown rebuild costs in Brisbane typically range from $2,900 to $8,000 per square metre, with a fully custom home generally starting from around $1,000,000 depending on design and site conditions.

No. Since you already own the land, a knockdown rebuild doesn’t attract stamp duty, unlike purchasing a new property.

A realistic timeframe is 12 to 18 months from initial design through to handover, including a pre-construction planning phase of around 4 to 6 months.

Beyond the base construction cost, budget for structural engineer reports, council permits, project management fees, and a contingency of 15–20% to cover issues like asbestos, outdated wiring, or termite damage discovered once work begins.

Whether you’re planning a custom home, home extension, renovation, or knockdown rebuild, the first step is understanding what’s possible for your property—and what it will realistically take to bring your vision to life.

RedKem Constructions offers an initial consultation for homeowners across Brisbane. We’ll discuss your ideas, assess your site, explain your options, and provide honest, practical advice to help you move forward with confidence.

No pressure. No obligation. Just expert guidance from a trusted Brisbane builder committed to quality craftsmanship and exceptional service.

Get in touch with RedKem Constructions Today:

If you’d like an initial estimate before speaking with a builder, try the B4U Build online calculator. Once you have a better understanding of your budget, RedKem Constructions can guide you through the next steps with a detailed consultation and fixed-price proposal.

Location: Tingalpa, Brisbane, QLD

Phone: 1300 002 102

Website: www.redkem.com.au

Email: jared@redkem.com.au

10/07/2026

What Is a High Performing Custom Home — And Why Does It Matter?
If you’ve been researching custom home builders in Brisbane, you’ve probably come across terms like “passive house,” “energy efficient,” and “high performing home.” But what do they actually mean — and why should they shape the home you build?
At RedKem Constructions, we’re not just custom home builders. We engineer homes grounded in building science. Here’s what that looks like in practice, and why it makes a real difference to your comfort, health, and long-term costs.

High Performing Custom Homes: More Than a Buzzword
A high performing custom home is one that’s been deliberately designed and built to work with its environment — not against it. Where a standard home relies heavily on air conditioning and heating to stay liveable, a high-performance home maintains consistent, comfortable temperatures year-round with dramatically lower energy demand.
The principles behind this come from passive house design — an approach to construction that brings together five core elements:
1. Thermal Envelope Continuous, high-performance insulation wraps the entire building — walls, roof, and floor — eliminating cold bridges and keeping temperatures stable without mechanical intervention.
2. Airtightness A rigorously sealed building envelope stops uncontrolled air leakage. In a standard home, air leakage accounts for up to 40% of heat loss. Eliminating it is one of the most impactful things you can do for energy performance.
3. Mechanical Ventilation with Heat Recovery Fresh, filtered air is supplied continuously while recovering up to 90% of the heat from exhaust air. No draughts. No stale air. No compromise.
4. High-Performance Windows & Doors Low-emissivity glazing and thermally broken frames eliminate condensation and heat transfer at the most vulnerable points in the building envelope.
5. Thermal Bridge-Free Construction Every junction, penetration, and structural element is designed to eliminate the cold spots that cause condensation, mould, and energy loss.
Together, these five elements transform your home from a passive shelter into an active, precision-engineered system.

What Makes a Home Truly Energy Efficient?
As an energy efficient home builder working across South-East Queensland, we design for Brisbane’s Climate Zone 2 from the ground up. That means energy efficiency isn’t an add-on — it’s baked into every design decision.
Here’s how we engineer it:
Solar Orientation We orientate your home around the sun — capturing warmth in winter and shading interiors in summer. Orientation alone can reduce heating and cooling loads by up to 25%.
Thermal Comfort Through Materials Superior insulation and building materials create a consistent indoor temperature all year round. No cold corners. No overheating. Just consistent comfort.
Renewable Energy Integration Solar panels, battery storage, and smart energy management are integrated from day one — not bolted on as an afterthought. This maximises return and reduces grid dependency over the life of your home.
Colour and Material Selection In Brisbane’s climate, lighter exterior colours and reflective roofing materials dramatically reduce heat absorption. We guide every client through selections that perform as well as they look.
Strategic Shading Carefully designed eaves, louvres, and pergolas provide shade exactly where needed in summer while allowing low winter sun to penetrate — reducing cooling costs without sacrificing views or natural light.

High Performance Homes Are Healthier Homes
Lower energy bills are the headline benefit. But the deeper value of a high-performance home is what it does for the people living in it.
Indoor Air Quality When mechanical ventilation is designed correctly, your home continuously supplies fresh, filtered air — reducing allergens, CO₂, and pollutants. You breathe better. You sleep better.
Clean Water We integrate high-performance water filtration and recommend alternative piping materials over plastic — so your family’s water is as clean as your home’s air.
Natural Light and Biophilic Design Carefully placed glazing maximises daylight without overheating. Landscaping, courtyards, and open-plan living maintain your connection to the natural world — proven to reduce stress and improve wellbeing.
Non-Toxic Materials We vet every material we specify — selecting low-VOC paints, formaldehyde-free timber products, and natural finishes wherever possible, so your home doesn’t off-gas harmful chemicals into the air you breathe.
Why Choose a Custom Home Builder in Tingalpa?
As a custom home builder based in Tingalpa, RedKem Constructions works primarily across Brisbane’s south-east corridor — and we know the local conditions, council requirements, and climate considerations that affect your build.
Every home we design is genuinely custom. That means your block, your orientation, your family’s lifestyle, and your long-term energy goals all shape the design from day one. There are no off-the-shelf plans, no compromises on the things that matter.
We’re also GreenSmart accredited and carry QBCC Licence No. 127 89 92 — so you’re working with a builder who’s been formally assessed in sustainable building practices, not just one who talks about them.
Built for the Planet, Not Just the Present
Our commitment to sustainability extends beyond the homes we deliver:
- We partner with waste collection companies that separate and recycle skip bin material into timber, drainage gravel, and road base products — diverting construction waste from landfill.
- We plant native trees with GreenFleet on every project, offsetting the carbon emissions generated during construction and contributing to Australia’s long-term reforestation.
- We build to last. The most sustainable home is one built so well it never needs to be demolished.
Ready to Build a High Performing Custom Home in Brisbane?
Your home should work for you — keeping you comfortable, healthy, and in control of your energy costs for decades to come.
If you’re looking for custom home builders in Brisbane who understand building science and take performance seriously, we’d love to talk.
Frequently Asked Questions.

A high performing custom home is one that’s deliberately designed and built to work with its environment, not against it. Unlike a standard home that relies heavily on air conditioning and heating to stay comfortable, a high performing home combines a continuous thermal envelope, airtight construction, mechanical ventilation, high-performance windows, and thermal bridge-free detailing to maintain stable, comfortable temperatures year-round — with dramatically lower energy demand.

Yes. Passive house principles are often assumed to be relevant only to cold climates, but in Brisbane’s Climate Zone 2, the bigger challenge is managing heat gain in summer rather than heat loss in winter — and passive design addresses this directly.
Solar orientation alone can reduce heating and cooling loads by up to 25%, while strategic shading from eaves, louvres, and pergolas keeps interiors cool in summer without blocking valuable winter sun. The result is a home that stays cooler in summer and warmer in winter, with far less reliance on the air conditioner.

High performing homes typically carry a premium of around 10–20% over standard construction, depending on the level of specification.
This needs to be weighed against the lifetime savings: lower energy bills, reduced reliance on heating and cooling, fewer maintenance issues from moisture and mould, and stronger resale value. Beyond the financial return, the day-to-day comfort and health benefits — stable temperatures, clean air, and no cold spots or condensation — are felt from the moment you move in.

An energy efficient home typically focuses on individual measures — such as better insulation, efficient appliances, or solar panels — that reduce energy consumption.
A passive house goes further, applying a whole-of-building approach where the thermal envelope, airtightness, ventilation, glazing, and thermal bridge-free construction work together as one integrated system.
At RedKem, we design every custom home using these passive house principles from day one, so energy efficiency isn’t a feature added on top — it’s built into the structure itself.

Mechanical ventilation continuously supplies fresh, filtered air into a home while exhausting stale indoor air out — and transfers part of the heat and moisture between the two air streams to improve efficiency — reducing allergens, CO₂ build-up, and airborne pollutants.
Combined with airtight construction, this eliminates the dampness and mould common in leaky, poorly insulated homes. Non-toxic, low-VOC materials mean the air inside isn’t off-gassing harmful chemicals.
Together, these features support better sleep, fewer respiratory issues, and a healthier home environment for your family.

RedKem Constructions is based in Tingalpa and builds primarily across Queensland’s south-east corridor, with deep knowledge of local conditions, council requirements, and climate considerations.
Every home we design is genuinely custom — your block, orientation, lifestyle, and energy goals shape the design from the start, with no off-the-shelf plans.
We hold QBCC Licence No. 127 89 92 and are GreenSmart accredited. We also offset construction carbon emissions through native tree planting with GreenFleet on every project.

Timelines vary depending on the size, complexity, and specification of the home, but as a guide, most custom builds take 12–18 months from design approval to completion.
Because high performing homes require precise detailing — particularly around airtightness and thermal bridge-free construction — careful planning at the design stage helps keep the build on schedule without compromising performance.
Our team will provide a project-specific timeline as part of your initial consultation.

While the biggest gains come from designing a home around high performance principles from the start, many features can be incorporated into renovations, extensions, and second-storey additions — including improved insulation, airtight detailing, high-performance windows, and mechanical ventilation.
If you’re planning a home extension or house raise, our team can advise on which high performance upgrades will deliver the best results for your specific project.
Call us on 1300 002 102
Get in touch via our contact page
Learn more about our High Performance Homes
11/06/2026
Mastering Communication with Your Builder: A Comprehensive Guide for Homeowners
Undertaking the creation of a new home or diving into a substantial renovation project is a thrilling but intricate journey. A pivotal element that can significantly shape the outcome of your endeavour is the art of effective communication with your builder. A transparent and candid exchange of ideas can go a long way in ensuring that your aspirations and expectations are well understood, resulting in a streamlined construction process and a gratifying final product. In this article, we will impart invaluable insights and guidance on the art of communicating effectively with your builder.
1. Establishing a Firm Foundation
Before the construction commences, it is imperative to lay a solid foundation of communication with your builder. This involves comprehensive discussions about your objectives, preferences, and anticipations.
Take ample time to express your vision clearly, and encourage your builder to do the same. A shared understanding right from the beginning is vital to prevent misunderstandings and conflicts later on.
2. Sustain Consistent Contact
Maintaining a steady line of communication with your builder is of paramount importance throughout the construction process.
Schedule regular meetings or check-ins to monitor progress, address any concerns, and make necessary decisions. Depending on the scale of your project, these meetings could range from weekly to bi-weekly.
A consistent flow of communication keeps you well informed, offers you a platform to provide feedback, and allows for timely adaptations when required.
3. Precision and Attention to Detail
When communicating with your builder, precision and attention to detail are your allies.
Steer clear of vague statements and instead provide explicit instructions or requests. For instance, rather than saying, “I want a larger kitchen,” specify the desired dimensions or offer examples of the features you wish to incorporate.
The more exacting you are, the better equipped your builder is to grasp and fulfill your expectations.
4. Everything in Black and White
Verbal exchanges are indispensable, but it is equally vital to document everything in writing.
Record all agreements, modifications, or decisions made during meetings or conversations. This practice not only creates a documented history of the project’s evolution but also serves as a reference point for both parties.
Written communication curtails the likelihood of misunderstandings or overlooking critical details.
5. Active Listening
Communication involves two-way traffic, so actively listen to your builder’s insights and expertise.
Builders possess invaluable knowledge and experience in their field, which can significantly enhance the overall outcome of your project. Foster open dialogue, pose questions, and seriously consider their suggestions.
A collaborative approach nurtures a positive working relationship and heightens the prospects of a successful construction journey.
6. Addressing Concerns Promptly
Should any concerns or issues crop up during the construction process, it is essential to deal with them promptly in conjunction with your builder.
Effective communication encompasses timely troubleshooting and the identification of mutually agreeable solutions. Ignoring or deferring the resolution of problems can lead to avoidable delays, budget overruns, or an unsatisfactory final result.
Uphold an open line of communication to tackle concerns constructively and proactively.
7. Respect for Professional Boundaries
While effective communication is pivotal, it is also crucial to respect professional boundaries.
Acknowledge that builders juggle multiple projects and commitments, so be mindful of their time and workload. Steer clear of excessive demands or frequent interruptions, and be appreciative of their expertise and judgment.
An approach that is respectful and professional establishes trust and facilitates effective cooperation.
Conclusion
In essence, effective communication is the linchpin of a fruitful partnership between homeowners and builders. By establishing a robust foundation, maintaining regular contact, adhering to precision and attention to detail, documenting decisions, actively listening, addressing concerns promptly, and respecting professional boundaries, you can ensure seamless communication throughout your construction venture.
Remember, lucid and transparent communication paves the way for a harmonious working relationship and acts as a conduit to transform your vision into the home of your dreams.
19/09/2025
A Renovation and Home Extension Builder’s Guide to future-proofing your Home
As renovation and home extension builders, we get a lot of questions about getting the best value for money when renovating and extending homes. It’s a great question and definitely something most homeowners want to achieve. Most of the time, when thinking about the best value for money, people will generally think about the finishes and the size.
But there’s another element that is equally important to think about and may not deliver a good return on investment in the short term but will pay off in the long term. And that is renovating your home to allow for future changes.
What Does That Mean Exactly?
To make it easy, we’ve put together a guide on future-proofing your home, including all the elements you should think about and how you can adopt a forward-thinking approach, ensuring your home remains functional, sustainable, and adaptable for years to come.
Flexibility & Adaptability
When designing your home renovations and extension, it’s important to consider the flexibility and adaptability of the design over time.
Most Australian homeowners consider renovations and extensions because of family changes. For example, they’ve either grown out of their current space due to new additions to the family, or their current home is no longer workable because of kids growing into teenagers and teenagers into adults.
Renovating your home in the short term to accommodate a growing family is great, but forward-thinking down the track and considering your home and how it can adapt as your toddlers become children and your children become teenagers can help you think differently about the design.
Opting for an open floor plan that allows for easy reconfiguration of spaces is a great way to incorporate flexibility into your home design. Consider multi-purpose rooms that can serve different functions over time. By providing flexibility in your home’s layout, you can accommodate changing needs and avoid costly renovations down the line.
Another element that needs to be considered is our own ageing. As much as we don’t like to admit it, we will age. And as we age, our needs and the requirements we need from our home also needs to change.
This means we might need extra supports in the bathrooms, wider doorways, non-slip flooring, access ramps and other accessibility features. The building standards in each state are also considering these requirements, and the way we build and renovate homes is changing in line with a more future-focused approach.
The requirements under the National Construction Code (NCC) for ‘livable housing design’ means we need to change the way we design our homes and make our homes more easily adaptable to the changing needs of the occupants.
New homes going forward will be required to consider livable housing design features, and undertaking considerable renovations and extensions will also mean these elements need to be considered.
Renovations and extensions are when you should be thinking about incorporating universal design principles into your existing home that focus on accessibility, safety, and convenience. By considering these elements during your home upgrades, you can comfortably age in place and avoid costly modifications later.
Sustainability & Energy Efficiency
Australia’s commitment to energy efficiency and sustainable design is an essential consideration in any home renovation and extension project.
Depending on the age, there may be little to no sustainability features in your home. This means it may not even have any insulation, let alone water-saving devices or energy-efficient lighting. If it’s more than thirty years old, we’re guessing it has a fair few gaps as well resulting in a lot of air leaks.
Even if your home is just ten years old, it’s likely to need an energy-efficient update. Sustainability has come a long way in ten years, and new requirements mean your home may not even be compliant with new NCC energy-efficient homes energy standards.
So, when undertaking a renovation or home extension, consider all your sustainability options and what energy-efficient features you can incorporate into your home that will both save you money in running costs and keep your home current with energy efficiency requirements.
Some sustainability and energy-efficient features to consider include:
- Insulation
- Solar panels
- LED lighting
- Water tanks and water-saving devices
- Double glazed windows
- Passive home design and designs that incorporate cross ventilation
- Materials and finishes that are both sourced and produced under sustainable conditions
Working towards a high star rating under the Nationwide House Energy Rating Scheme (NatHERS) is a good place to start when considering sustainability and future-proofing your home.
Smart Technology
Along with sustainability, technology is advancing at an unprecedented pace, and while it’s hard to imagine how it may impact our homes in the future, it’s something to consider.
Planning your renovation and home extension to accommodate emerging technologies, such as electric vehicle charging stations, smart appliances and integrated home automation systems, is almost an essential requirement now and as renovation and home extension builders, it’s something we are asked about and recommend often.
If you live in an older home, it can be hard to imagine all the things that smart technology can do. A smart home can adjust your thermostat, turn on and turn off your lights, set your security, let you see who is at your front door, unlock and lock your doors, run you a bath. The list is almost endless.
Even if you don’t need or use these elements now, if you incorporate the technology into your home upgrades, it will allow for easier adaptation in the future without major structural modifications and electrical upgrades down the track.
Simply incorporating the infrastructure to convert your home to a smart home will also add to the value of your home.
From a Renovation and Home Extension Builders Perspective
From a renovation and home extension builders perspective, future-proofing your home is money well spent.
As renovation and home extension builders, we have worked on numerous projects and the homes that will stand the test of time are the ones where forward planning and future-proofing have been thought about and elements incorporated into the renovation.
Of course, everyone needs to take into account the budget when it comes time to renovate, but future-proofing your home will be money well spent and will be a good investment long into the future.
For more information and a chat about how we can incorporate any of these elements into your home renovation or extension, get in touch, and we can book a time to talk.
19/09/2025
10 Reasons to Renovate Your Home
Your home is more than just a place to live; it’s a reflection of your personality, lifestyle, and aspirations. While moving to a new house may seem like a tempting option, renovating your existing home can offer a multitude of benefits. From enhancing comfort to adding value, home renovations allow you to transform your living space according to your needs and desires. In this article, we’ll explore ten compelling reasons why renovating your home is a worthwhile investment.

1. Personalisation and Style
Home renovations give you the opportunity to personalise your home and create a space that truly reflects your unique style. Whether it’s updating the paint colours, installing new flooring, or adding decorative elements, you can infuse your personality into every nook and cranny of your home.
2. Enhanced Comfort
Improving comfort is a common reason for home renovations. You can upgrade insulation, replace worn-out windows, or revamp your HVAC system to create a more comfortable living environment. Imagine enjoying consistent temperatures throughout the year and costing up in a well-insulated home during the winter months.

3. Improved Functionality
Does your home lack functionality? Renovations allow you to optimise the layout and design to better suit your needs. You can reconfigure rooms, knock down walls to create an open floor plan, or add storage solutions to maximise space utilisation. A functional home enhances your daily life and makes everyday tasks more convenient.
4. Energy Efficiency
In an era where sustainability is gaining importance, renovating your home for energy efficiency is a smart move. Upgrading to energy-efficient appliances, installing solar panels, or improving insulation can significantly reduce your carbon footprint and lower utility bills in the long run.
5. Upgraded Technology
Advancements in technology have revolutionised the way we live. Renovating your home gives you the chance to incorporate smart home features such as automated lighting, security systems, or intelligent thermostats. These upgrades not only add convenience but can also increase your home’s value.
6. Value Appreciation
Renovating your home is a strategic investment that can increase its market value. Upgraded kitchens and bathrooms, improved curb appeal, and modernised amenities attract potential buyers and potentially yield a higher selling price if you decide to put your home on the market.

7. Repairs and Maintenance
Over time, wear and tear are inevitable. Renovations provide an opportunity to address necessary repairs and maintenance tasks. Fixing leaky roofs, plumbing issues, or structural problems not only ensures your home’s longevity but also prevents costly damage down the line.
8. Expansion for Growing Families
If your family is growing or your needs have changed, a home renovation can help you create additional space without the hassle of moving. Whether it’s adding an extra bedroom, a home office, or a play area, expanding your home allows it to adapt to your evolving lifestyle.

9. Emotional Attachment
Your home holds cherished memories and sentimental value. Renovating can help preserve the emotional connection you have with your house while refreshing its appearance and functionality. It allows you to create a space that aligns with your current stage of life while maintaining the essence of what makes it home.
10. Neighbourhood Compatibility
Your home is part of a larger community. Renovating your property can contribute to the overall aesthetics and desirability of the neighbourhood. By updating your home’s appearance, you not only improve its curb appeal but also enhance the value and appeal of the surrounding properties. Renovating your home offers a plethora of reasons to embark on this exciting journey. From personalising your space to increasing its value, a home renovation empowers you to create a home that aligns with your lifestyle and aspirations. Whether you’re seeking comfort, functionality.
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19/09/2025
Energy-efficient homes: Everything you need to know about the NCC energy efficiency changes
Having energy-efficient homes is important to many Australians. And for good reason. An energy-efficient home is good for the environment and it can save us all a pretty penny in running costs. And the latest changes to the NCC will have us building our homes with a greater emphasis on energy efficiency.
Let’s take a look at what those changes are and how they can impact you when undertaking a major renovation on your home.
What is the NCC?
Before we dive into the NCC changes, let’s first clarify what the NCC is and how it works within Australian housing.
The NCC stands for the National Construction Code. It sets the minimum required level for safety, health, amenity, accessibility and sustainability for building within Australia.
The NCC should not be confused with the Australian Standards. They are two completely separate pieces of information but are used together to make sure our homes (and other structures) are constructed to a safe and structurally sound standard.
Want to know more about the NCC? It is free to access and can be found here: https://ncc.abcb.gov.au/.
Every 3 years the Australian Building Codes board and all the state and territory governments come together to review the NCC and update the standards in which we build to ensure we are achieving a high level of standard in our builds as we evolve both in our construction methods and the materials we develop for our homes.
The latest update was completed in October 2022, with a lot of the changes set to roll out in Queensland both this month (May 2023) and October 2023.

source: https://abcb.gov.au/sites/default/files/resources/2022/NCC-2022-Residential-Energy-Efficiency-Overview-of-Provisions.pdf
What is changing in the NCC in 2023
We want to talk specifically about the energy efficiency changes coming into effect this year, but some other fairly significant changes should also be noted. These include:
Fire safety standards – New fire safety standards will come into effect for buildings under the updated NCC. The focus will be on improving safety, particularly in high-rise buildings. The new standards will include requirements for the use of fire-resistant materials, the installation of sprinkler systems, and the provision of safe evacuation routes. The new standards will also require building owners to maintain their fire safety systems regularly.
Accessibility requirements – The NCC 2022 will introduce new accessibility requirements for buildings, with a focus on improving access for people with disabilities. The new requirements will include mandatory minimum standards for the design of accessible bathrooms, ramps, and doorways. There will also be new requirements for the provision of accessible parking and the installation of hearing loops and visual alarms.
Building and construction standards – The NCC 2022 will introduce new building and construction standards, with a focus on improving the quality and safety of buildings. The new standards will include requirements for the use of high-quality building materials, the installation of moisture barriers, and the provision of adequate ventilation to improve condensation management.
There will also be new requirements for the management of construction waste and the use of sustainable building practices.
Energy-efficient homes – Sustainability changes within the NCC
As well as the changes listed above, the NCC updates have outlined some fairly significant changes to sustainability and energy-efficient homes.
The updated energy efficiency requirements within the NCC aim to reduce greenhouse gas emissions from buildings by setting higher standards for insulation, ventilation, and lighting. This means that new buildings and major renovations must meet higher energy efficiency ratings to be compliant with the NCC.
Why is this important? Well, Australian homes are a major contributor to greenhouse gas emissions and energy consumption. The reality is that residential buildings are responsible for around 24 to 29%% of overall electricity use and 11 to 12% of total carbon emissions in Australia.
By making buildings more energy-efficient, we can reduce these emissions and move towards a more sustainable future.
There are two key energy efficiency changes being made in the NCC:
Increased minimum thermal performance requirements – Walls, roofs, and floors on all new builds and major renovations must have better insulation to reduce heat loss or gain. The current thermal performance currently requires an energy rating equivalent to 6 stars under the Nationwide House Energy Rating Scheme (NathHERS). This will be bumped up to the equivalent of 7 stars under the new requirements.
This will provide a significant improvement in the thermal comfort you will feel in the home, and, if you are renovating an older home that has next to no insulation, this is going to make a huge difference to the livability of your home.
Houses in warmer climates will also be required to use lighter-coloured roofs and install ceiling fans to reduce heat gain and provide better cooling.
Whole-of-home annual energy use budget – This is a requirement that now needs to be met by new homes and major renovations. This criteria applies to the heating and cooling equipment that is being installed and used in the home. Equipment such as…
- Hot water systems
- Artificial lighting
- Swimming pool and spa pumps
- Onsite renewable energy systems (solar panels for example)
… will all be taken into account within the new energy budget. The budget, according to the NCC board, is based on the energy cost to society. It’s a little confusing to get your head around right now, but soon this will be our new normal and our homes will be better off for it.
In a nutshell, in order to meet the 7 stars standard and the new energy-efficient home requirements, homeowners will need to consider the following when building and undertaking a major renovation on their homes:
Better insulation – This included better insulation for your roof, walls and floor.
- Improved glazing – new homes will have to use windows with better thermal performance, such as double glazing to reduce heat transfer.
- Greater air-tightness – New homes will have to have better seals around openings to prevent air leakage that contributes to energy waste.
- More stringent requirements for heating, cooling, and ventilation systems – new builds will need to consider more efficient energy-efficient heating, cooling, and ventilation systems, such as heat pumps or high-efficiency air conditioning units.
- New requirements for on-site renewable energy generation – new builds will have to incorporate on-site renewable energy generation, such as solar panels, to offset their energy consumption.
How do the NCC changes regarding energy-efficient homes impact homeowners wanting to build or renovate?
All these new requirements are going to lead to lower energy bills and as the occupant, you are going to enjoy the difference in the livability of your home. It will be much more comfortable and your home will be able to better regulate its internal temperature without the need to rely so much on extra heating and cooling.
All good things for you and your home right? Not only will your home be far more comfortable, it will be cheaper to run and improving the energy efficiency of your home is also going to contribute to the overall value of your home.
But, while the new requirements are a good thing in the long run, it does need to be noted that adding in all these new requirements to your home or renovation means that the costs to build or renovate are likely going to increase. It will be an investment, but as a homeowner who is looking to build or undertake a major renovation, you do need to be aware of and factor in the extra costs that go into building an energy-efficient home.
How much extra will it cost to build with the NCC sustainability changes?
How much extra it will cost to build your home with the new NCC energy efficiency requirements is something that cannot be laid out here and now. Every home is different, every build is different and every budget is different.
What we can tell you though, is that RedKem Constructions are the experts when it comes to building energy-efficient homes. From the very beginning, we have been working with our clients to make sure all the latest energy-efficient products and materials are presented as an option for the project and are incorporated wherever possible.
Building beautiful and energy-efficient homes for Brisbane families is what we do, and sustainability is an important aspect to achieving exceptional results on all the renovations we’ve been involved in.
We are ready to fully embrace the NCC energy efficiency requirements and are committed to providing the best sustainable options in all aspects of your renovation.
Click through to our gallery to view our projects or book a call and we can talk about how we are meeting the NCC requirements for energy-efficient homes and how we can incorporate sustainable measures into your home renovation.
19/09/2025
We’re going green, in 2018!!
We’re going green, in 2018! Are you?
In 2018, RedKem Constructions are joining the environmentally aware to guide and innovate people in the direction of designing and building/renovating a sustainable, energy efficient home. We’re partnering with a number of green suppliers who provide more sustainable building solutions and we will be offering a series of new ‘Green Machine’ renovation packages custom designed for each particular project.
Here’s a brief overview:
We’re going to team up with partners that supply rainwater harvesting and water conserving products and appliances, The use of natural lighting and ventilation, solar power, battery storage and solar heating, formaldehyde free wood products, using recycled plastics and recycled products for items like wall and ceiling insulation that offer higher energy efficient ratings, double glazing in windows and doors, energy efficient lighting products and so much more.
Overall, we want to create a healthier, happier lifestyle, improve the usage of water and energy efficiency of your home which won’t only reduce your bills but save the earth too 🙂
19/09/2025
Design your home to capture the perfect sun angles
Living in the Sunshine State of Queensland means most of the time we spend at home is outdoors, why?
We have 2792 hours of full sunlight per year with an average of 8 hours per day and that takes into consideration the cloudy and rainy days. Even winter temperatures don’t go much below 15 degrees during the day either.
If you have an unused area in the backyard that you could potentially turn into an entertainment area, sun deck, BBQ area etc. then contact a building professional to discuss the potential of your unused space as well as designing and positioning your outdoor area to capture the right sunlight.
Here’s an example on a few of our recent outdoor projects..
18/09/2025