Why a Rear Extension?
The most popular way to add space and value to Australian homes.
Indoor-Outdoor Living
Create a natural flow from your living area to alfresco and garden spaces.
Open Plan Design
Transform dark, dated rooms into bright open-plan kitchen and living spaces.
Strong ROI
Rear extensions consistently deliver strong returns on investment in Australian markets.
Minimal Disruption
Construction from the rear means less impact on your day-to-day living.
What's Possible with a Rear Extension?
A rear extension is the most versatile way to add living space to your home. By extending into the backyard, you can open up and transform the entire back section of your house — typically the kitchen, dining and living areas.
Most rear extensions in Australia range from 20m² to 60m² and cost between $2,500 and $4,000 per square metre. The key is maximising connection between your new indoor spaces and the outdoor entertaining area.
Rear Extension FAQs
How much does a rear extension cost in Australia?
Rear extensions typically cost $2,500–$4,000 per square metre depending on finishes and complexity. A standard 40m² rear extension averages $100,000–$160,000 including all trades, materials, and council fees.
Do I need council approval for a rear extension?
This depends on your council and the size of the extension. Many rear extensions can be approved as Complying Development (CDC), which is faster and cheaper than a full Development Application (DA). We handle all approvals as part of our service.
How long does a rear extension take to build?
From design to completion, a rear extension typically takes 4–8 months. This includes 1–2 months for design and approvals, and 3–6 months for construction.