A new kitchen inside an existing house may need no council planning approval at all. A rear extension of the same home can trigger several checks before a shovel goes in. That is why the question, when do council permits apply, cannot be answered by the size of a project alone. In Victoria, it depends on the property, its planning controls, the scope of works and whether you are affecting public land, neighbouring properties or a protected feature.
For homeowners planning a custom home, major renovation, knockdown rebuild or dual occupancy project, permits are not paperwork to leave until the last minute. They shape the design, programme, cost and what can legally be built. Getting the approval pathway right early prevents redesigns, stalled starts and expensive compliance issues later.
The first distinction: planning permit versus building permit
People often use “council permit” to describe every approval required for construction. In practice, planning permits and building permits do different jobs.
A planning permit is usually issued by the local council. It assesses whether a proposed use or development is appropriate under the local planning scheme. Council considers matters such as neighbourhood character, overlooking, overshadowing, setbacks, heritage, vegetation, parking, drainage and the impact on adjoining owners.
A building permit confirms that the documented construction work complies with the National Construction Code, relevant Australian Standards and Victorian building regulations. It is issued by a registered building surveyor, who may be private or municipal. The building surveyor also sets mandatory inspection stages, including critical structural work that must be checked before it is covered.
One does not replace the other. A project can require a building permit but no planning permit, such as some straightforward internal renovations. A project that needs planning approval will generally still need a building permit before construction begins.
When do council permits apply to a new home or extension?
For new homes, substantial extensions, second-storey additions and knockdown rebuilds, the answer is often: check first, assume nothing. Even if a neighbouring property has a similar extension, the planning controls affecting your land may be different.
A planning permit may be required where the proposal is affected by an overlay, where the planning zone triggers a permit, or where the development does not meet the relevant standards. Common triggers include heritage overlays, neighbourhood character controls, flood or bushfire management overlays, environmental or vegetation protections, and design and development overlays.
The design itself can also create a planning trigger. This may relate to building height, site coverage, front or side setbacks, private open space, overlooking, overshadowing or car parking. For a dual occupancy development, planning approval is commonly required because the proposal introduces an additional dwelling and must be assessed against more detailed residential development requirements.
The practical lesson is simple: do not finalise architecture, engineering or a fixed construction price until the likely permit pathway is understood. A well-run feasibility and design phase identifies restrictions early, then designs to them rather than treating council feedback as an unexpected obstacle.
Planning controls are specific to the property
The planning scheme applies controls to individual parcels of land, not broad assumptions about a suburb. Two homes on the same street may have different overlays or constraints. A corner site may face separate access and sightline considerations. A property near a waterway may require flood-related assessment, while a home a few blocks away may not.
Heritage is a frequent example. A heritage overlay can affect demolition, external alterations, roof forms, fences, outbuildings and the treatment of visible façades. It does not always mean development is impossible. It means the proposal needs to respect the heritage significance identified by the planning scheme, and the design response needs to be properly documented.
Vegetation controls deserve the same care. Removing, pruning or building close to protected trees can require separate approval. A tree is not an afterthought once plans are complete. Its location, root zone and protection requirements can affect the building footprint, driveway, stormwater layout and construction access.
Building permits apply to most structural work
A building permit is required for most new residential building work, including a new dwelling, extension, substantial renovation, garage, deck, carport, retaining wall or demolition work. The exact requirements vary with the scale and nature of the work, but structural changes should never be treated as informal handyman work.
The building permit process reviews technical documentation: architectural drawings, engineering, energy efficiency information, soil and site data, specifications and, where needed, performance solutions. It also establishes required inspections. These inspections are not optional site formalities. They verify key work at stages when defects can still be identified and corrected, rather than discovered after linings, cladding or finishes conceal them.
For Builda Group projects, this discipline matters well beyond satisfying a permit condition. Waterproofing interfaces, bracing, flashing, framing connections and drainage details are where long-term performance is won or lost. Good documentation and staged inspection create accountability around the work homeowners may never see once the home is finished.
Other council approvals can apply outside the house itself
A project may not need planning approval yet still require council approvals for work that affects public assets or land beyond the boundary. These approvals are often missed in early budgeting because they sit outside the main building permit process.
Depending on the council and project, this can include a vehicle crossing or crossover permit, an asset protection permit, a road occupancy permit, approval to place a skip or materials on the nature strip, or consent for drainage connections. If construction activity could damage a footpath, kerb, road, drainage pit or street tree, council may require documentation, inspections or a bond.
Demolition also requires careful coordination. A demolition permit or building permit may be required, and services must be disconnected safely. Where asbestos is present, removal must be managed in accordance with Victorian safety requirements. On a heritage site, demolition may require planning approval before any demolition permit can be issued.
When a permit may not be required
Some minor works may be exempt from planning approval and may not need a building permit, provided they meet the applicable regulations. Cosmetic works are the clearest example: painting, replacing cabinetry, changing floor finishes or updating a bathroom without moving structural elements generally falls into a different category from an extension.
However, “minor” is not a reliable legal test. Moving a wall may affect structure. Replacing external doors or windows may affect energy efficiency, weatherproofing or fire safety. A small deck, pergola, retaining wall or shed can still require a permit depending on dimensions, location, height, proximity to boundaries and site controls.
Do not rely on what a friend did, a contractor’s verbal assurance or a listing that calls work “exempt”. Confirm the property controls and scope before committing. The cost of checking is small compared with undoing unauthorised work, resolving an insurance issue or dealing with a delayed settlement when the property is sold.
A practical permit pathway for Victorian homeowners
The right sequence avoids wasted design fees and prevents construction from being priced against drawings that cannot be approved.
First, establish the title information, zoning, overlays, easements and existing service conditions. This shows whether there are obvious constraints before the concept design is locked in.
Next, develop the design with the planning rules, site conditions and budget working together. Where planning approval is needed, prepare a complete application with drawings, reports and supporting information suited to the proposal. Incomplete applications and poorly resolved designs tend to create unnecessary requests for further information.
Once planning approval is issued, the design must be carried through in accordance with the endorsed plans and permit conditions. Changes to windows, materials, building footprint, height or landscaping may need further approval. A planning permit is not a blank cheque to make site-driven changes later.
Then prepare the technical documentation for the building permit. This is where engineering, energy ratings, specifications and construction details need to align. Construction should start only after the building permit is in place and the required pre-start conditions have been addressed.
The value of early, disciplined advice
Permit requirements can feel complicated because they are genuinely site-specific. But they are manageable when planning, design and construction are coordinated from the beginning. The most expensive approach is to treat approvals as an administrative task after the design is complete.
Before you fall in love with a floorplan or sign a building contract, have the property and proposed works properly assessed. Clear permit advice gives you a firmer design brief, a more reliable programme and fewer surprises once construction is underway. That is the groundwork for a home that is not only well designed, but properly approved and built to last.