Building in Wollongong: Knockdown Rebuild, Granny Flat & Duplex Guide
Wollongong City Council (NSW) · Indicative rules and costs for homeowners · 中文报告同样支持
Min lot (KDR)
400㎡
Max height
9m
Setbacks (front/side)
4.5m / 0.9m
DA timeline
14–26 wks
Fast-track CDC
Often available
Build cost
$2000–$2900/㎡
📊 Indicative ranges from council planning controls and recent market data — not quotes, and individual blocks vary.
Escarpment areas have bushfire risk. Coastal flood risk in low areas.
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Get my free feasibility report →Frequently asked questions — Wollongong
Can I knock down and rebuild in Wollongong?
Generally yes — Wollongong City Council requires a minimum lot of around 400㎡ for a standard knockdown rebuild, with a maximum building height of 9m. Fast-track CDC approval is available for fully compliant designs.
How long does council approval take in Wollongong?
A DA through Wollongong City Council typically takes 14–26 weeks in practice. A compliant CDC pathway is usually around 2–4 weeks instead.
How much does it cost to build in Wollongong?
Typical build costs around Wollongong run $2,000–$2,900 per square metre of floor area, plus demolition of roughly $14,000–$24,000. These are indicative ranges, not quotes.
Can I build a granny flat in Wollongong?
In NSW, a secondary dwelling (granny flat) of up to 60㎡ can usually be approved via fast-track CDC on lots of 450㎡ or more, subject to overlays such as heritage, flood and bushfire.
What are the main risks for building projects in Wollongong?
For the Wollongong City Council area: heritage risk is low, flood risk is medium, bushfire risk is medium. Escarpment areas have bushfire risk. Coastal flood risk in low areas.
Nearby areas under Wollongong City Council
This page provides general guidance for the Wollongong City Council area and is not advice about any specific property. Planning controls change — always confirm with council or run a block-specific feasibility report. © 2026 AusBuildCircle 澳洲建房圈.