🏡 Considering a Property for a Future Granny Flat? Here’s What to Keep in Mind

Thinking of buying a property with the goal of adding a granny flat / Secondary Dwelling? It’s a great way to create extra income, house family, or boost long-term value, but not every site is suitable.

Before signing a contract, it’s important to understand the governance and planning rules that determine whether a granny flat can be built on your chosen block.

1. Understand the Planning Framework

In NSW, granny flat approvals are guided by a combination of state and local planning rules. Before purchasing, make sure you understand the following:

• State Environmental Planning Policy (SEPP) – this sets out the statewide criteria for secondary dwellings.

• Local Environmental Plan (LEP) – outlines zoning and land-use controls specific to your local council area.

• Development Control Plan (DCP) – provides more detailed design and site requirements, including setbacks, landscaping and access.
  

✅ Tip: You can access these documents through the NSW Planning Portal or by contacting your local council’s planning department.

2. Check Zoning and Land Use Zoning is the first thing to confirm, as it determines whether a granny flat is permitted on the property.

Each council area in NSW has its own planning controls, and these can differ over time. In most cases, secondary dwellings are allowed in standard residential zones, but some rural or environmental zones may have additional restrictions or require a Development Application (DA) instead of a Complying Development Certificate (CDC).

✅ Tip: Always check the zoning through the NSW Planning Portal or your local council’s planning department before making an offer on a property.

3. Be Aware of Site Constraints

Even if a block looks ideal, certain factors can affect build feasibility. Common constraints include but not limited to :

• Easements or drainage reserves

• Native trees or vegetation buffers

• Steep slopes or poor drainage

• Bushfire, flood or heritage controls

• Limited access or insufficient setbacks
  

Because these elements vary from site to site, it’s always best to review them through official sources or seek an independent planning assessment.

4. Why You Should Verify Before You Buy

While it can be tempting to rely on general information, there are many variables that determine if a granny flat can be approved.

A property may appear to “tick all the boxes,” but a single easement, service line, or restriction on title can stop a project entirely.

That’s why it’s best to consult the official planning frameworks e.g. SEPP, LEP & DCP rather than relying on assumptions or verbal advice.

Next Step: Get a Desktop Assessment

Once you’ve reviewed the relevant planning information, we can help you take the next step.

At Wollongong Granny Flats, we can conduct a desktop assessment of your proposed property to give an early indication of its suitability for a granny flat,  without providing formal planning advice.

💬 Need advice before you buy?

We’re always happy to take a look and give honest feedback.

📞 Call us on 0488 428 717 or email support@wgfs.com.au to get started.

Disclaimer: This article provides general information only and should not be taken as legal, financial or planning advice. Always verify requirements directly with the NSW Planning Portal or your local council before purchasing a property.