Do I Need a Planning Permit for My Renovation?

One of the most common misconceptions in residential renovation is that planning permits are triggered by construction cost. They are not. Planning permit requirements are determined by your property's zone, any applicable overlays, and the physical parameters of the proposed works — height, setback, site coverage, and use.

What Triggers a Planning Permit?

Under the Victorian Planning Provisions (VPP), a planning permit is required for residential works when:

• The property is in a zone that requires a permit for the proposed works (e.g., Neighbourhood Residential Zone with height above 8m or setback non-compliance)
• An overlay applies that requires permit — Heritage Overlay (HO), Vegetation Protection Overlay (VPO), Bushfire Management Overlay (BMO), Land Subject to Inundation Overlay (LSIO), or Design and Development Overlay (DDO)
• The proposed use is changing (e.g., adding a second dwelling, operating a home business above a certain scale)
• Native vegetation removal is proposed on a property subject to vegetation controls

Many single-dwelling extensions need no planning permit at all. The zone and the overlays decide it. In a General or Neighbourhood Residential Zone, building or extending a house on a lot under 300 square metres needs a permit, and so do external works in a Heritage Overlay. Where a permit is needed, council assesses the design against Clause 54 (ResCode). Where none is needed, the building surveyor checks siting, height and overlooking under Part 5 of the Building Regulations 2018.

Key Overlays That Always Require a Permit

Heritage Overlay (HO): If your property is individually listed or within a heritage precinct, a permit is required for any external works — including painting, window replacement, fence works, and demolition. The sensitivity of the heritage assessment and the significance of the property determine how closely council will scrutinise the proposal.

Bushfire Management Overlay (BMO): Properties in or near bushfire-prone areas require a planning permit for construction of dwellings. The proposal must demonstrate compliance with AS 3959 Construction of Buildings in Bushfire-Prone Areas and may require a Bushfire Attack Level (BAL) assessment.

Land Subject to Inundation Overlay (LSIO) / Special Building Overlay (SBO): Properties in flood-affected areas require a permit where construction is proposed. Melbourne Water or the relevant catchment authority is typically a referral authority.

Design and Development Overlay (DDO): Certain precincts (e.g., coastal villages, activity centres, identified streetscapes) have specific design controls under a DDO. Review the schedule to your DDO to understand what is required.

How to Check Whether You Need a Permit

Three practical options:

1. 1SPEAR (Streamlined Planning through Electronic Applications and Referrals): Victoria's online planning portal allows you to search your address and identify applicable zones and overlays.
2. 2Your council's planning department: A pre-application meeting or informal inquiry to the duty planner is free and can save significant time and cost. Most councils offer this service.
3. 3SiteLogic: Planning data aggregation platforms provide zone, overlay, and planning scheme information by address, often with links to the relevant scheme controls.

VicSmart vs Standard Application

Where a planning permit is required, many straightforward residential applications can be processed under VicSmart — a streamlined pathway with a 10-business-day determination timeframe. VicSmart applies to low-complexity permits (minor extensions in heritage overlays, small vegetation removals, minor setback non-compliances).

A standard planning permit application for a residential extension or alteration in a heritage overlay typically takes 3–6 months, plus a further 1–2 months for any Section 72 amendments or condition negotiation.

What Happens If You Build Without a Permit?

Construction without a required planning permit carries significant risk. Council can issue a Stop Work Order and require demolition of unapproved works. At property sale, an unapproved structure can delay or prevent settlement. It also creates professional indemnity exposure for any architect or building designer involved. Always check first.