From extra living space to multi-storey additions, we build extensions that feel like they’ve always belonged.
Running out of space? A home extension is one of the smartest ways to create more room, add value, and future-proof your property. Whether you’re welcoming a growing family, want to entertain in style, or simply need more breathing space, our extensions are designed and built to feel like they’ve always belonged.
At Trade Constructions, we specialise in high-quality extensions that combine architectural vision, practical design, and flawless construction. From concept to completion, we make the process seamless, safe, and stress-free.
Compliant and defect-free
On time and on budget
High-quality finishes
Affordable pricing
Fast and excellent communication
Fully licensed & insured
Homeowners' warranty insurance for projects over $20k
10 year warranty on wet area waterproofing
38+ years construction experience
Why Choose a Home Extension?
Stay in the location you love
no need to move suburbs just to gain space
Boost your property's value
extensions deliver one of the strongest returns on investment
Designed for your lifestyle
layouts tailored to the way you live, entertain, and relax
Future-proof your home
extra bedrooms, open-plan living, or dual-living spaces for multigenerational families
Accredited Builder
Home Building Compensation
Fund Warranty Insured for
Projects Over $20k
Endorsed Builders Licence (Supervisor)
Building
Commission
DESIGNING
YOUR DREAM HOME
Our Extension Services
We offer complete end-to-end extension solutions, including:
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Ground Floor Extensions – open up your living areas, add a new bedroom, or expand your kitchen into a modern entertainer’s hub
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Second Storey Additions – double your space without losing your yard, perfect for growing families
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Granny Flats & Studios – self-contained spaces for teenagers, parents, or rental income
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Outdoor Living Extensions – alfresco areas, decks, and sunrooms that blend indoors with outdoors.
Every project is fully compliant with the NCC (National Construction Code) and Australian Standards, ensuring your extension isn’t just beautiful but built for longevity.
HIGHEST QUALITY
EXCEEDING EXPECTATIONS
Trade Constructions was formed by a team with extensive experience in building inspections, defect investigations, and expert witness reporting.
After years of assessing non-compliant construction and presenting technical findings in legal proceedings, we saw a clear need for a construction service grounded in genuine expertise and accountability. We also have a background as former site managers and project managers for some of Australia’s largest Tier 2 building companies, where we delivered complex residential and commercial projects under demanding regulatory and quality frameworks.
With a detailed understanding of the National Construction Code, Australian Standards, and rectification methodology, Trade Constructions offers a more rigorous and reliable approach to building, focused on compliance, quality, and long-term performance.
FIRST STEPS
01
BALLPARK PRICE FOLLOWED BY A SITE VISIT &
FORMAL QUOTAION
02
SIGN AGREEMENT & COMPLETE DESIGN
03
COMMENCE CONSTRUCTION
Why Clients Choose Trade Constructions
38+ Years Experience
38+ years combined experience in construction, inspections, and large-scale building projects
Family Run Business
Family-run business ethos – you’ll deal directly with people who genuinely care about the result
Transparent Quoting
Transparent quoting – no hidden extras, just clear costs and timelines
Quality Work
Quality craftsmanship – backed by trusted suppliers and trades
Peace Of Mind
Peace of mind – HBCF insurance, warranties, and strict safety compliance
HOW WE WORK
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Consult & Design – We start by understanding your needs and lifestyle. Our designers and engineers map out solutions tailored to your property.
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Approvals & Compliance – We manage DA approvals, certifications, and structural checks so nothing gets missed.
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Construction – Our experienced team delivers with precision, attention to detail, and safe, clean work sites.
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Completion & Handover – Extensions handed over on time, with workmanship warranties and compliance certificates.
Home Extension Price Guide Sydney
We know one of the first questions clients ask is “How much does a home extension cost in Sydney?” The answer depends on size, complexity, finishes, and approvals – but we believe in giving you a clear guide upfront so you can plan with confidence.
At Trade Constructions, our pricing includes all materials, labour, project management, approvals, and insurances to deliver a true turnkey solution.
Typical Extension Costs in Sydney
Ground Floor Extensions
From $3,000 – $4,000 per m²
Perfect for extending living areas, adding a bedroom, or re-designing kitchens into open-plan spaces.
Granny Flats & Studios
From $180,000 – $250,000
Fully self-contained spaces designed for family, guests, or rental income.
Second Storey Additions
From $3,500 – $4,500 per m²
A smart way to double your space without giving up valuable backyard area.
Outdoor Living Extensions
From $50,000 – $100,000
Custom outdoor areas (alfresco, decks & sunrooms) that blend seamlessly with your home and lifestyle.
All prices are based on Sydney market conditions in 2025. Final costs may vary depending on site access, structural requirements, and selected finishes.
Why Our Pricing Works
Clear & Transparent
no hidden extras or unrealistic allowances
Tailored To Your Property
designed to suit existing structures and site conditions
Designed & Built To Last
every extension meets NCC and Australian Standards for quality and durability
Get Your Personalised Quote
Every home is unique, and so is every extension. While this guide gives you a solid starting point, the best way to know what’s possible for your property is with a tailored proposal. Contact Trade Constructions today for a personalised extension quote in Sydney.
SIT BACK & RELAX
HASSLE FREE PROJECTS
We've got this!
Sit back and relax, our team are highly
experienced in coordinating home renovation projects.
We are a family-run business led by brothers Jarratt and Trent, who bring a combined 38 years of experience across residential, commercial, and civil construction. Jarratt, a licensed builder and founder of Building Inspections Sydney, has managed high-end developments for leading Tier 2 builders. Trent’s background lies in civil infrastructure, having supervised large-scale projects for top-tier civil contractors. With a hands-on approach to every build, they deliver technically sound, transparent, and outcome-focused solutions tailored to each client’s needs.
OUR SERVICES
Why Us?
Safety First
Our team are not only dedicated to a high level of building results, but also to our rigid Work Health & Safety Policies. They ensure staff safety in their working careers. Regular site safety audits and staff training highlights the dedication to our safety management system - we understand, people’s lives depend on it.
Understand
Our clients
We believe in establishing an honest, direct and personal relationship with our clients. Every single remediation or renovation project is handled with the utmost care and our team is 100% client-oriented. By working closely with our cherished clients, we develop a thorough plan and strive to execute it to perfection.
competitive
pricing
Due to a strong working relationship with our suppliers, we are able to offer our clients with fair and competitive pricing, without compromising on quality.
We can usually beat most our competitors quotations by 5%.
Knowledge
With a detailed understanding of the National Construction Code, Australian Standards, and rectification methodology, Trade Constructions offers a more rigorous and reliable approach to building, focused on compliance, quality, and long-term performance.
asset protection
On the first day of your home renovation, our site supervisor will ensure temporary floor protection, dust sheets and dust curtains, are installed to ensure your house is kept clean and protected from the construction works.
licenced
& insured
We hold a NSW Builders Licence and for your protection we are fully insured. All our Trades hold Contractor Licences.
Customer Reviews
Daniel, Quakers Hill
These guys know what they are doing. Trade construction not only rectified the serious waterproofing membrane issues both externally and internally, but they also managed our tenants and the entire process with professionalism – thanks, Guys.
Arnav Singh, Randwick
We engaged Trade Constructions for an interior renovation and couldn't be happier with the result. From the first consultation, Trent was professional, transparent, and incredibly knowledgeable. It was clear from day one that the team knew the technical aspects of the renovation, which gave us real peace of mind throughout the process. Highly recommend them to anyone who wants their renovation done properly by people who actually care about the outcome.
Lucinda, Rose Bay
I was amazed at the level of service and communication. Polar opposite to the stereotypical builders we have engaged in the past. Best of all, the finishes and standard of work were very high, which is something I hadn’t seen before either. Well done, guys. Many thanks to Jarratt and his well-mannered team for putting up with us at times. Wonderful dealing with you all!