Can I build a duplex on my land?

Let me help you understand the possibilities of building a duplex in Sydney, though I should note that the final determination will depend on several specific factors about your property.

Key considerations for building a duplex in Sydney:

1. Zoning and Land Classification

• Your land must be in a zone that permits dual occupancy development (typically R2 Low Density Residential or similar)

• Some areas may have special restrictions or heritage overlays

  2. Block Requirements

• Minimum lot size (typically 400-600m² depending on council)

• Adequate street frontage (usually minimum 12-15m)

• Suitable block shape and dimensions

  3. Council-Specific Controls

• Floor Space Ratio (FSR)

• Height limits

• Setbacks from boundaries

• Car parking requirements

• Private open space requirements

To determine if you can build a duplex, you'll need to:

1. Check your Local Environmental Plan (LEP) and Development Control Plan (DCP) through your local council's website

2. Verify your property's zoning

3. Consult with a local planning professional or council planner

4. Consider engaging an architect or building designer familiar with local regulations

I recommend:

1. Obtaining a Section 10.7 Planning Certificate from your local council

2. Speaking with a local building certifier or planning consultant

3. Getting preliminary advice from your council's duty planner

Note that requirements can vary significantly between different Sydney councils, and regulations may have changed since my last update. It's best to verify current requirements with your local council.