It depends on the scope. Minor internal renovations (like painting or flooring) usually don’t need approval, but structural changes, extensions, or external work will require Development Approval (DA) and/or a Building Permit.

You can do cosmetic or non-structural work, but anything over $20,000 in structural work must be done by a registered builder. DIY work on plumbing, electrical, and gas is prohibited without licensed trades.

Approval times vary by council, but allow 2–6 weeks for planning and 10–25 business days for building permits, depending on the complexity of the renovation.

Yes, if your renovation exceeds $20,000 or involves structural changes, you need a registered builder licensed by Building and Energy WA.

Wall removals
Room additions

Alfrescos and patios

Carports and garages

Bathroom/kitchen layout changes

External changes affecting appearance or structure

If well-executed, yes. Updating key areas like kitchens, bathrooms, and outdoor spaces can significantly improve your resale value and market appeal.

Usually yes, but it depends on the extent. For major structural work, it might be safer and more comfortable to temporarily move out.

Yes, if your renovation involves structural changes (e.g. removing a wall, adding a slab, modifying the roof). A structural engineer must prepare certified drawings for the building permit.

Yes. Renovations that include new habitable rooms must meet 6-star energy efficiency standards, including insulation, glazing, and ventilation requirements.

Yes. All electrical and plumbing work must be done by licensed tradespeople, and compliance certificates must be submitted after completion.

Yes, but you’ll need heritage approval and may face more restrictions. Renovations must preserve or complement the heritage character, and approvals take longer.

Only if your renovation affects privacy, boundary setbacks, or seeks variations to the R-Codes. Council may request neighbour comment during the planning process.

You’ll need a Bushfire Attack Level (BAL) assessment and compliance with relevant construction standards, especially for external cladding, windows, and rooflines.

Renovation: Modifies existing space (e.g. kitchen remodel, wall removal)

Extension: Adds new floor area (e.g. new bedroom, family room)

Yes, provided your plumbing and drainage systems can accommodate it. Council approval and water corporation notification may be required.

Possibly — especially for boundary extensions, confirming site levels, or if property lines are unclear. A licensed land surveyor ensures legal accuracy.

Not without specific Water Corporation approval. Building over or near easements can limit access or damage utilities.

Home equity loans

Line of credit

Refinancing - Consult a mortgage broker for the best option.