The 8-step framework

1. STEP 1

   Be clear what "renovate" means for your home

   A renovation reworks the layout, materials and systems inside the existing footprint - new kitchen, reconfigured living, re-roof, rewire. It is not an extension (adding floor area) or a rebuild (starting again). If you mostly need the same rooms done better, renovation is usually the honest answer. If you need a fundamentally different home, keep reading.

2. STEP 2

   Get a building inspection and an engineer in early

   A pre-renovation building inspection plus a structural engineer’s opinion tells you whether the bones are worth keeping. Failing footings on reactive clay (common in Melbourne’s west and north), widespread restumping, or an end-of-life roof can quietly turn a simple reno into rebuild money. Pre-1990 homes also carry asbestos risk that must be surveyed first.

3. STEP 3

   Apply the 50-60% rule

   The industry rule of thumb: when a renovation would cost more than roughly 50-60% of a new build, a knockdown rebuild often becomes the smarter choice. Renovations on older Melbourne homes frequently uncover hidden costs - asbestos, restumping, rewiring - that push the total past that line without you noticing.

4. STEP 4

   Check your overlays and permit path first

   Check your property on Vicplan or with your council for a Heritage Overlay (HO) or Neighbourhood Character Overlay before you design. A heritage overlay can make demolition hard to approve - which often makes a sympathetic renovation the only realistic path. Some works qualify for a faster VicSmart permit; larger changes need a full planning permit plus a building permit.

5. STEP 5

   Price both paths on the same end-state

   Get a renovation quote and a rebuild quote against the same finished home you actually want - same bedrooms, living zones and finish level. Comparing a patch-up renovation against a fully finished new build is the most common way families end up spending renovation money for a home that still feels old.

6. STEP 6

   Factor the renovation risks people underestimate

   Renovations carry the highest hidden-condition risk of any path: asbestos in pre-1990 walls and eaves, non-compliant old wiring and plumbing found once walls open up, and the cost of matching new work to old. Budget a 15-20% contingency on an older-home renovation, and make sure your contract assigns discovery risk fairly.

7. STEP 7

   Factor what a rebuild actually delivers

   A rebuild is more than the build cost: add demolition, service disconnections, and holding or rent costs across the build, plus any Growth Areas Infrastructure Contribution (GAIC) or Section 173 agreement in growth areas. In return you get a brand-new home with full structural warranties, Domestic Building Insurance cover and a mandatory 7-star NatHERS rating - built by a builder registered with the Victorian Building Authority (VBA) - versus a renovated home that typically lands at 4-5 star even after a deep retrofit.

8. STEP 8

   Weigh the lifestyle and emotional factors honestly

   Keeping the character of a home you love, staying in your street and school zone, and avoiding a year of displacement all have real value. Sometimes they justify renovating even when the numbers lean rebuild. Name those trade-offs with the whole household before you commit either way.

FAQs