A new kitchen, rear extension or second storey can look straightforward on a floor plan. On site, it sits within a regulated process designed to protect safety, structural performance, neighbouring properties and the long-term value of your home. Understanding how renovation permits work before design is locked in helps prevent the costly version of a delay: redesigning approved drawings, pausing trades or discovering a planning issue after contracts are signed.
For substantial renovations in Melbourne and regional Victoria, permits are not paperwork to be handled at the end. They shape what can be built, how it is documented and when work can legally start.
Planning permits and building permits are different
The first point of confusion is that a planning permit and a building permit do different jobs. One does not replace the other.
A planning permit is issued by the relevant local council. It considers whether the proposed development is appropriate for the site and neighbourhood under the planning scheme. This can include the size and placement of an extension, overlooking, overshadowing, neighbourhood character, heritage controls, vegetation removal, parking and subdivision requirements.
A building permit is issued by a registered building surveyor, either private or municipal. It confirms the proposed work complies with the National Construction Code, Victorian building regulations and applicable Australian Standards. The focus is on how the project will be built safely and properly, from footing design and structural bracing through to fire safety, energy efficiency, waterproofing and drainage.
Many major renovations need a building permit. Whether a planning permit is also required depends on the property, the scope of work and the overlays that apply to the land. A modest extension in one street may proceed without planning approval, while a similar extension a few blocks away may require it because the site is affected by a heritage, vegetation, flooding or neighbourhood character overlay.
How renovation permits work in the right order
The right sequence protects both your programme and your budget. In most projects, the site is assessed before detailed documentation is completed. That early work identifies planning controls, title restrictions, easements, service locations and the likely permit pathway.
If planning approval is required, it generally comes first. Council assesses the proposal and may request further information, refer the application to authorities, advertise it to neighbours or require changes before issuing a decision. The length of this stage varies considerably. A clear, well-resolved application is less likely to lose time to avoidable requests for information, but council workloads, objections and site complexity can still affect timing.
Once the design is planning-compliant, or where no planning permit is required, the technical documentation is prepared for the building permit. This typically includes architectural drawings, engineering, soil information, energy rating documentation, specifications and relevant reports. The building surveyor reviews the documents and may request amendments or further details before issuing the permit.
This is why early coordination matters. A concept that looks good but cannot accommodate required setbacks, overlooking controls, drainage falls or structural framing will need to change. Good pre-construction work resolves these issues while changes are still relatively inexpensive.
When is a permit likely to be required?
There is no reliable rule that says a project under a certain dollar value or floor area is exempt. Permit requirements are based on the work being done and the site itself.
A building permit is commonly required for structural alterations, additions, second-storey works, new bathrooms where major plumbing and waterproofing works are involved, significant internal reconfigurations, retaining walls, garages and carports. Demolition work may also require a permit and specific safety controls.
Some minor works may not need a building permit, such as simple cosmetic upgrades. Repainting, replacing cabinetry without changing structure, or installing new floor finishes are often treated differently from removing load-bearing walls or moving wet areas. But assumptions are risky. A wall that appears non-structural can carry roof or floor loads, conceal bracing or affect fire separation.
Planning permission may be triggered by an extension, a new dwelling, a dual occupancy project, a heritage overlay, a substantial change to the building envelope or work within an area subject to particular local controls. Covenants and easements on the title can create separate constraints as well. A permit does not automatically override a covenant, and an easement may restrict where building work can occur.
What the building surveyor checks
The building surveyor is an independent statutory practitioner. Their role is not to manage the builder or approve a preferred finish. Their role is to assess whether the documentation meets the required building standards and to inspect prescribed stages of work.
For a renovation, the review may cover structural adequacy, site cut and drainage, termite protection where applicable, energy efficiency, smoke alarms, weatherproofing details, sanitary facilities and the safety of any demolition or temporary works. In an extension, the connection between old and new construction deserves particular attention. Existing structures do not always meet current standards, and opening them up can reveal issues that were not visible during design.
A permit is issued against a specific set of approved documents. If the project changes materially during construction – for example, the extension moves, windows are relocated, steel sizes change or the roof design is altered – the permit may need to be amended before that work proceeds. Treating approved plans as a working document, rather than a filing requirement, keeps everyone accountable.
Permits do not end when construction starts
After the building permit is issued, the work must be inspected at prescribed stages. Depending on the project, this can include excavations and footings, slab or subfloor work, framing, waterproofing-related works where required, and final completion. The exact inspection schedule is set out in the permit.
These inspections are a critical quality checkpoint, but they are not a substitute for disciplined site supervision. A surveyor inspects defined stages, not every trade detail every day. The builder still needs to coordinate licensed trades, check work against drawings and specifications, and ensure the details that are difficult to see later – flashing, bracing, membrane preparation and junctions between materials – are done correctly.
At the end of the project, the building surveyor issues either an Occupancy Permit or a Certificate of Final Inspection, depending on the nature of the work. This documentation matters when you sell, refinance, insure or undertake future alterations. Keep the permits, approved drawings, engineering and final certificates with your property records.
Common causes of permit delays
Most permit delays are not caused by a single form being submitted late. They start earlier, when the project proceeds without enough information.
Incomplete drawings, missing engineering, unclear boundary information and uncoordinated consultant documents all create requests for further information. Planning applications can also stall when overshadowing or overlooking is not properly addressed, where neighbourhood character responses are generic, or where the proposal overlooks heritage and vegetation controls.
Existing homes add another layer. Older properties can contain undocumented alterations, reactive soil conditions, ageing drainage, asbestos or structural defects that only become clear after investigation or demolition. A realistic contingency and a builder who plans for investigation work are more useful than an artificial promise that nothing will change.
Neighbouring property issues can also affect the programme. Depending on the proposed work, protection works notices may be required where construction could affect an adjoining property. Access arrangements, shared boundaries and party wall conditions should be considered early, not when excavation is ready to begin.
A better way to approach permits
The strongest permit strategy begins with a coordinated team and a buildable design. It means reviewing the title and planning controls early, commissioning the right site and consultant information, and documenting the work to the level required for construction rather than relying on broad concept drawings.
It also means being honest about approvals. No builder can control council processing times or guarantee that an application will attract no questions. What a capable building partner can control is the quality of the application, the coordination of drawings and reports, and the speed with which legitimate requests are answered.
At Builda Group, permits are treated as part of the construction plan, not an administrative hurdle handed to the client. That approach gives homeowners clearer decisions before work starts and fewer surprises once the site is active.
A renovation permit is ultimately there to ensure the finished home is safe, compliant and properly documented. Start the process before you become attached to a layout, allow time for the site-specific details, and choose a team prepared to build what is approved – properly, not approximately.