Expert House Extensions in Sydney – Single Storey, Two Storey & More
Add more space and comfort to your home with our Sydney-based house extension services. From side return extensions to front or rear extensions, we handle every stage of the build.
A Sydney Builder Focused on Practical, Quality House Extensions
At Sydney Architectural Construction, we bring architectural design and hands-on building together under one roof. Based in Sydney, we’ve worked on everything from semi-detached homes to large two-storey extensions. Whether you’re planning a single-storey addition or a full rear extension, we manage each step of the process from council approvals to the final build.
When it comes to House Extensions Sydney homeowners can rely on, our work reflects the city’s style, structure, and regulations. We understand the unique design of local homes, including terrace properties, and how to add space without over-complicating the structure. Our team works closely with homeowners and designers to meet building regulations, avoid delays, and deliver what’s needed, nothing more, nothing less.
Types of House Extensions We Offer
Single Storey Extensions
Ideal for adding living space, bedrooms, or a larger kitchen without impacting the upstairs or overall structure.
Two Storey Extensions
Add extra rooms without losing backyard space. Ideal for growing families who need more space but want to stay in their current home.
Rear Extensions
A popular option across Sydney, rear extensions open up the back of your home into a more open and usable space.
Front Extensions
Where the block allows, front extensions can improve street appeal, add a home office or extra room, and enhance natural light.
Side Return Extensions
Often used on semi-detached or terrace homes, side return extensions make use of unused pathways or narrow side yards.
Studio Additions
Great for rental income, extended family, or a home office. These can be part of a single-storey extension or a separate build.
Why Choose Us for Your House Extension
Local Experience
We’ve built on semi-detached, terrace, and freestanding homes across Sydney, always with local styles and council rules in mind.
Extension Options
Whether it’s a front, rear extension, side return extension, or two-storey build, we can complete the design and build.
Code Compliance
We follow current building regulations in all local government areas to make sure your extension is approved without delay.
Project Management
As your licensed general contractor, we coordinate every trade, schedule, and inspection to keep your project on track.
Clear Communication
You’ll always know what’s happening. No jargon, no unnecessary meetings, just regular updates and clear decisions.
How We Deliver House Extensions in Sydney
01
Site Visit & Discussion
We meet on-site to understand what you need: more space, better layout, or changes to suit your family or property.
02
Planning & Design
Working with trusted architects or your designer, we help create a plan that meets your goals and Sydney building regulations.
03
Council Approval
We assist with required paperwork, plans, and documents for local council approval or complying development certification (CDC).
04
Construction
As your general contractor, we coordinate trades, order materials, and make sure your project runs on time and to budget.
05
Final Inspection & Handover
We walk through the completed build with you and handle any final touches or adjustments before handing over the keys.
What Our Happy Clients Are Saying!
Start Your House Extension with a Local Sydney Builder
Call us or send a message to arrange a site visit and chat about your options. We work across all parts of Sydney and understand what local homes need.
Frequently Asked Questions
How much does a house extension cost in Sydney?
It depends on the size, layout, and site conditions. Single-storey extensions generally cost less than two-storey builds. We provide a precise quote after an on-site visit.
Do I need council approval for a house extension?
Yes, most extensions need either a Development Application (DA) or a Complying Development Certificate (CDC). We handle all the planning and meet local building regulations.
Can you extend a terrace or semi-detached home?
Yes. We regularly build rear extensions, side return extensions, and even two-storey additions on terrace and semi-detached homes across Sydney.
How long does a typical house extension take?
A single-storey extension may take 3–4 months. Two-storey builds take longer. Timelines vary based on approvals and site conditions.
Do you handle everything as the builder?
Yes, we’re a licensed general contractor. We manage the whole process, design support, trades, materials, inspections, and handover.
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