Thinking of Building a Granny Flat in Sydney? Here's What You Need to Know About Council Rules
Granny flats are a smart way to add value to your property, create extra living space, or generate rental income. But before you start sketching out designs, it’s crucial to understand the council regulations that govern granny flat construction in Sydney.
At Credible Homes, we’ve helped countless homeowners navigate the approval process with ease. Here’s a breakdown of what you need to know.
✅ What Is a Granny Flat?
A granny flat—also known as a secondary dwelling—is a self-contained living space located on the same lot as a primary residence. It can be attached or detached and must include its own entrance, kitchen, bathroom, and living area.
🏛️ Council Approval: The Basics
In NSW, granny flats are regulated under the State Environmental Planning Policy (SEPP) for Affordable Rental Housing. This means:
Your property must be at least 450m² in size.
The granny flat must be no larger than 60m².
The lot must be zoned for residential use (R1, R2, R3, or R4).
Only one granny flat is allowed per residential lot.
You can often get approval via a Complying Development Certificate (CDC), which is faster than a full Development Application (DA).
📐 Design & Placement Rules
Must be located behind or beside the main dwelling.
Requires private open space for the granny flat.
Must meet setback requirements (e.g., distance from boundaries).
Needs separate access from the main home.
🛠️ Services & Infrastructure
You’ll need to connect the granny flat to water, sewer, and electricity.
Some councils require stormwater management plans.
Consider privacy screens or fencing to separate living areas.
📝 Tips for a Smooth Approval
Work with a builder who understands local council requirements (like us!).
Prepare a site plan and elevation drawings before applying.
Check for heritage overlays or bushfire zones, which may affect approval.
Why Choose Credible Homes?
We specialize in designing and building granny flats that meet council regulations while maximizing space, comfort, and style. From concept to completion, we handle everything—including approvals—so you can enjoy a stress-free experience.
Ready to build your granny flat? Let’s talk. Call us at 0418 969 168 or visit crediblehomes.com.au to book your free consultation.