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1a Silverdale Pde, Jewells NSW 2280

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Complying development granny flat approval

Did you know that you don’t need council approval to build a granny flat on your property?

This means that you can have a 2 bedroom granny flat built in your backyard, with no council approval. So you can get approved in as little as 10 days without neighbours objecting. Not to mention the potentially lower cost.

What Rules Apply For Granny Flat Approvals In NSW??

In 2009, the NSW Government released the Affordable Housing State Environment Planning Policy (SEPP). This policy permits all residential home-owners meeting certain criteria to build a granny flat on their property. Namely, a property larger then 450m2, which also has a minimum 12m street frontage.

The NSW Affordable Housing SEPP allows granny flats in NSW to be approved as a complying development in just 10 days. This legislation means that residential homeowners do not require granny flat approvals on their property subject to some minimum requirements.

The minimum site requirements for a granny flat approval as a complying development include:

  • The property must have a minimum area of 450m².
  • Property must be zoned residential.
  • There must be a 12 metre width at the building line of the existing dwelling. If your property does not meet this requirement, you could apply for an attached granny flat.
  • Maintain a 3.0m setback from the rear and 0.9m from side boundaries.
  • Maintain a distance of 3.0m from any existing trees that are over 6m in height.
  • Maximum 60m² internal area for your granny flat.

Granny Flat Setback Requirements for Approval on Your Block Size:

Lot Size (sqm) Minimum frontage (lineal meters)Min Side Setback Height <=3.8mMin Rear Setback Height <=3.8m

The diagram below shows the requirements for a block that is between 450sqm & 900sqm in size. Refer to Supporting secondary dwellings (granny flats) fact sheet below for further details of large site requirements.

Complying development map

We have a wide range of designs, check out some of our completed projects below


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