Can I build a granny flat in Wollongong?
Instant SEPP Housing 2021 eligibility check for any Wollongong address — lot area, zoning, heritage exclusions (519 items in Wollongong), flood control lots, biodiversity values, and acid sulfate soils. Free. Also check solar yield and shadow impact for any Wollongong address.
Min. lot area
450 m²
SEPP Housing 2021
Heritage items
519
in Wollongong
Flood data
FPA mapped
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 Wollongong — common questions
Can I build a granny flat in Wollongong?
Many Wollongong properties qualify under SEPP Housing 2021. Suburban lots across Wollongong, Figtree, and Unanderra are typically over 450 m². Heritage and flood exclusions are worth checking depending on suburb. Use the checker above.
What lot size is needed for a granny flat in Wollongong?
The minimum is 450 m² under SEPP Housing 2021. Most post-war residential lots in Wollongong are 550–800 m². Compact lots near the CBD and beachside suburbs may be below the threshold.
Does flood risk affect granny flat eligibility in Wollongong?
Parts of Wollongong near coastal lagoons, Mullet Creek, and Allans Creek have flood risk. Properties on flood control lots are excluded from the CDC pathway. The checker above cross-references statutory flood overlays for your address.
Are heritage exclusions common in Wollongong?
Wollongong has 519 heritage items. Heritage conservation areas exist in the Wollongong CBD and historic mining townships. Most residential suburbs are not heritage-affected.
Do I need council approval for a granny flat in Wollongong?
If all SEPP checks pass, a CDC through a private certifier is sufficient. Wollongong City Council is involved only if a criterion fails.
Check other property risks in Wollongong
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 statutory flood planning area boundaries for Wollongong. DCP setback and height controls not included. Not legal advice.