Granny Flats rules in Wyndham
Building a granny flat in Wyndham? Wyndham City Council applies the Victoria planning framework. Here's what that means locally — plus the overlays worth checking on your specific block.
Usually no planning permit needed
Yes. Since December 2023 a small second dwelling of 60 m² or less on a lot over 300 m² needs no planning permit where no triggering overlay applies - you only need a building permit.
Key rules at a glance
| Maximum floor area | 60 m² (gross, all storeys) |
| Minimum lot size | 300 m² for the no-permit path |
| Planning permit | Not required if standards met and no overlays |
| Building permit | Always required |
| Setbacks | Per Building Regulations / Clause 54 siting |
| Subdivision | Cannot be subdivided or sold separately |
| Can it be rented? | Yes |
| Zones permitted | A small second dwelling is a Section 1 permit-not-required use in the General Residential (GRZ), Neighbourhood Residential (NRZ), Residential Growth (RGZ), Low Density Residential (LDRZ), Mixed Use (MUZ), Township (TZ), Housing Choice and Transport (HCTZ), Rural Living (RLZ), Farming (FZ) and Rural Activity (RAZ) zones, including all their schedules. The 300 m² permit trigger in clause 32.08-6 applies in the urban residential zones only - in LDRZ, RLZ, FZ and RAZ the buildings and works clause catches Section 2 uses only, so no lot-size trigger applies there. |
Heritage, flood, bushfire and environmental controls on your specific lot can remove the fast-track and require a full application — even when the general rules say you're fine.
How often this applies in Wyndham
These are the overlays that can remove the fast-track, measured across every parcel in Wyndham from the same data behind our zoning map. They describe the council, not your block, and they are counted separately — one parcel can carry more than one, so they cannot be added together.
| Overlay | Share of parcels | What that means here |
|---|---|---|
| Heritage | 0.5% | 638 parcels flagged. The rest are mapped and sit outside it. |
| Flood | 0.6% | 764 parcels flagged. The rest are mapped and sit outside it. |
| Bushfire | 0% | 1 parcel flagged. The rest are mapped and sit outside it. |
The most common zone in Wyndham is GENERAL RESIDENTIAL ZONE - SCHEDULE 1, covering 52.6% of its 127,924 parcels. What you can build is decided by your own lot's zone, not the council's most common one.
Measured from our mapped parcel data, snapshot taken 2026-09-06. Overlays are checked live for a specific address on the address tool.
Granny flats in Wyndham
Wyndham City Council is the authority for Wyndham in West Melbourne. The statewide Victoria rules above set the baseline; the council can apply extra local controls, and heritage, flood or bushfire overlays on your lot can change what's allowed.
Visit Wyndham City Council ↗ Full Victoria rules →
See the Wyndham zoning map → — every parcel in Wyndham by zone, lot size and mapped constraints.
Frequently asked questions
Do I need council approval for a granny flat in Wyndham?
Often not. Victoria allows a granny flat to proceed without a full development application when it meets the standards, and Wyndham City Council follows that framework. But local overlays — heritage, flood or bushfire — can remove the fast-track, so check your exact address before you rely on it.
Which council approves a granny flat in Wyndham?
Wyndham City Council is the consent authority for Wyndham (West Melbourne). You can review local planning controls on the council website and lodge through your state planning portal.
Do I need a planning permit for a granny flat in Victoria?
Usually no. Since December 2023 a small second dwelling of 60 m² or less on a lot over 300 m² needs no planning permit if there are no flood, environmental, heritage or bushfire overlays, but a building permit is still required.
Sources
- Small second dwellings - Planning Victoria ↗
- Small second dwelling siting guide SI-03 - Building and Plumbing Commission (VIC) ↗
- Victoria Planning Provisions clause 32.08 General Residential Zone ↗
Related building rules
General guidance only — not professional planning advice. Local requirements in Wyndham can differ from the statewide summary and change over time; always confirm with Wyndham City Council before starting work. Last reviewed: July 2026.
Talk to a town planner in Wyndham
This page covers the general rules. A qualified town planner can tell you what applies to your actual block — the zone, the overlays and the approval path — before you spend money on drawings.
- Qualified, practising town planners
- Advice on your property, not a generic rule
- No cost, no obligation