Can I build a granny flat in Campbelltown?
Instant SEPP Housing 2021 eligibility check for any Campbelltown address — lot area, zoning, heritage exclusions (116 items in Campbelltown), flood control lots, biodiversity values, and acid sulfate soils. Free. Also check solar yield and shadow impact for any Campbelltown address.
Min. lot area
450 m²
SEPP Housing 2021
Heritage items
116
in Campbelltown
Flood data
ARI scenarios
checked per address
What we check
Lot area
Min. 450 m² under SEPP Housing 2021
Zoning
R1, R2, R3, R4, R5/RU5 under SEPP Housing 2021 cl 49
Heritage exclusion
Heritage items and conservation areas
Flood control lots
Statutory flood overlay check
Biodiversity
Biodiversity values map exclusions
Acid sulfate soils
Class 1 & 2 soil exclusions
Dual occupancy prohibition
LEP prohibition map check
Granny flats in Campbelltown — common questions
Can I build a granny flat in Campbelltown?
Yes — many Campbelltown properties qualify under SEPP Housing 2021. The minimum lot size is 450 m² and the property must not be a heritage item, flood control lot, or affected by biodiversity or acid sulfate soil exclusions. R1, R2, R3, and RU5 zones are generally permitted. Use the checker above to confirm your specific address.
What is the minimum lot size for a granny flat in Campbelltown?
The minimum lot size under SEPP Housing 2021 is 450 m². Campbelltown has a mix of lot sizes — many post-war suburban lots are 550–700 m² and qualify. Newer estate lots under 450 m² do not qualify for complying development.
Does flood risk affect granny flat approvals in Campbelltown?
Yes. Campbelltown has detailed ARI flood data — properties on flood control lots (within the 1% AEP zone) are ineligible for a CDC secondary dwelling. A DA with a flood risk management report is required. Check flood status above before proceeding.
Do I need council approval for a granny flat in Campbelltown?
If your property passes all SEPP Housing 2021 checks, you can lodge a complying development certificate (CDC) through a private certifier — no council DA required. If any check fails, you need a DA through Campbelltown City Council.
How large can a granny flat be in Campbelltown?
Under SEPP Housing 2021, secondary dwellings are limited to 60 m² internal floor area. On lots over 900 m², attached secondary dwellings may be permitted up to a different size. DCP setbacks and height limits also apply.
Check other property risks in Campbelltown
Also check nearby councils
Checks lot area, zoning, heritage items and conservation areas, flood control lots, biodiversity values, and acid sulfate soils against SEPP Housing 2021. Flood check uses ARI-quantified data for Campbelltown. DCP setback and height controls not included. Not legal advice.