Planning Permit vs Building Permit: These are two separate legal requirements under Victorian law and both commonly apply to building projects in Balwyn. The planning permit deals with land use and design under the Boroondara Planning Scheme. The building permit deals with construction safety and compliance under the Building Act 1993. According to City of Boroondara's official guidance, you may need a planning permit, a building permit, or both to alter or extend a house in Balwyn, depending on your property's specific zone and overlay controls.
When a Planning Permit Is Required in Balwyn: According to City of Boroondara, you need a planning permit if your property has any of the following overlays: a Heritage Overlay, unless the works are repairs and routine maintenance; an Environmental Significance Overlay, unless the works are repairs and routine maintenance or involve constructing a heating appliance, chimney, or flue pipe; a Design and Development Overlay, except for Schedule 4; or a Significant Landscape Overlay where the height of the house will exceed 6 metres above natural ground level. If your property has a Special Building Overlay, City of Boroondara recommends contacting their Statutory Planning team directly for advice on whether a planning permit is required.
Heritage Overlay in Balwyn: What Is Different: Unlike the precinct-wide heritage controls that apply across much of Kew, Hawthorn, and Camberwell, heritage protection in Balwyn applies to individually significant properties rather than entire streetscapes. Amendment C398boro, approved in June 2025, applied permanent Heritage Overlays to 17 individual properties in Balwyn and Balwyn North, primarily post-war modernist homes of architectural significance. Amendment C412boro is currently progressing through the planning scheme amendment process in 2026 and proposes heritage controls for 7 further individual properties in Balwyn, Camberwell, Kew, and Surrey Hills. For the overwhelming majority of Balwyn homeowners whose properties are not individually heritage-listed, renovations, extensions, and knockdown rebuilds proceed under standard Boroondara residential zone controls without a heritage planning permit.
When a Building Permit Is Required in Balwyn: A building permit is required in Boroondara for a new home, extensions, renovations, demolition, swimming pools, new fencing, re-stumping, retaining walls, boundary walls, spas, garages, carports, outbuildings, verandahs, and pergolas. Large fines apply if you build without the correct permits, and you may be required to demolish illegal structures. Your building permit application for City of Boroondara must include architectural and structural drawings showing all required details.
Internal Works: Internal alterations including bathroom renovations and kitchen renovations in most Balwyn properties proceed under a building permit only, without a planning permit, where no overlays apply to the property.
General Residential Zone and the 2026 Single Dwelling Exemption: As of 2026, single dwellings and extensions on lots of 300 square metres or more in a General Residential Zone no longer require a planning permit where no overlays apply. For properties in Balwyn that sit within this zone and carry no Heritage Overlay or other overlay, this exemption streamlines the approval pathway for straightforward extensions and alterations significantly.
How to Check Your Property: You can verify your Balwyn property's zone, overlays, and current planning controls through VicPlan at vicplan.vic.gov.au. For planning enquiries, contact City of Boroondara's Statutory Planning team at boroondara.vic.gov.au or call 03 9278 4888. For building permit enquiries, contact the Building Services team at the same number.