Building a Granny Flat in NSW with Flood/Risk Zones

In New South Wales, it’s possible to build a granny flat on land at risk of flooding or storms. However, there are specific regulations and considerations that must be taken into account.

Local Council Approval Required

You’ll need to obtain approval from your local council before commencing construction. This includes providing detailed flood studies and assessing the site’s stormwater management capabilities.

Floodplain Management Act 2017

The Floodplain Management Act 2017 regulates development in flood-prone areas. You’ll need to comply with these regulations, which may include upgrading drainage systems or relocating the granny flat away from high-risk zones.

Design Considerations

When building a granny flat in a flood- or storm-damaged risk zone, consider:

• Elevated foundations to protect against rising water levels
• Waterproofing measures to prevent water ingress
• Drainage systems that meet council requirements
• Regular maintenance and inspections to ensure the structure remains safe

Rental Income Potential

While building a granny flat in a flood- or storm-damaged risk zone may pose challenges, it’s not necessarily a barrier to rental income potential. Carefully assess the site’s condition and market demand before proceeding.