An information-only vetting guide for home extension builders working on Malvern period homes. A Malvern home extension - rear ground-floor, side-return infill, or first-floor addition - integrates a contemporary volume with an existing period home. The heritage overlay controls what happens above the ridgeline; ResCode Clause 54 controls overshadowing and overlooking on the neighbour boundary. BuildPilot is not yet matching builders in Malvern - this is a curator's checklist while VIC matching rolls out in 2026.

By George Giannakakis · B.Arch.Studies · M.Arch (UniSA) · RLA300580
Last reviewed: · How we research
Predominantly Edwardian, Federation and 1920s Californian bungalow. Some mid-century modernist and post-2000 rebuilds. High density of period detail.
Approximately 55% under Heritage Overlay. Neighbourhood Character Overlay applies more broadly. Tree Protection Local Law under Stonnington controls larger canopies. Stonnington planning permit lead time (heritage): 4-8 months for internal + external, 8-14 months for extensions.
Median residential lot 550-750m². Larger lots along Wattletree Road and Glenferrie Road. Narrower 8-10m frontage on grid streets.
Stonnington City Council heritage assessment typically requires that any first-floor addition sit behind the original ridgeline, set back from the front elevation, and finished in a sympathetic (but distinguishable) material palette. A rear extension is usually approvable; a visible first-floor addition can fail heritage. Concept-stage feedback from the council heritage officer saves 3-6 months.
Rear ground-floor extension (30-60m²): $280k-$550k. First-floor addition (60-100m²): $450k-$950k. Full renovation with rear extension and first-floor: $850k-$2.5m+. Costs sit 20-35% above Melbourne median because of the heritage detail requirement, tighter site access, and specialist trade selection.
Approximately 55% under Heritage Overlay That means most external work (extensions, window relocations, front-elevation changes, roof-form changes) triggers a Planning Permit before Building Permit. Internal-only work often only needs a Building Permit. Check Stonnington City Council's heritage assessment guidance or a title search on VicPlan (mapshare.vic.gov.au) before you commission drawings.
Three checks: VBA public practitioner register at vba.vic.gov.au/practitioners/register (ARBV register at arbv.vic.gov.au for architects); Domestic Building Insurance (DBI) eligibility confirmation with VMIA for your contract price - compulsory over $16,000; Three completed Stonnington City Council projects delivered in the last 24 months, with the client's permission to inspect. Do all three before you pay any deposit.
25-45% above Melbourne median trade rates. Contributing factors: heritage-detail skill premium, tighter site access on established streets, specialist trade selection (heritage plaster, cast iron, leadlight, sympathetic joinery), and premium finish-level expectation on Malvern projects. Trade rates in Malvern track closer to inner-Melbourne premium rates than to greenfield growth-corridor rates.
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Join Victoria waitlistDisclaimer: Pricing ranges are Mar 2026 Melbourne market observations and indicative only. Actual cost depends on site conditions, access and finish level. BuildPilot is an independent home-build CoPilot and does not build or supply. Always obtain three fixed-price quotes on identical inclusions.
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