Building on the Bellarine and Surf Coast: costs, council approvals and BAL bushfire ratings

The honest cost picture for 2026

For a high-quality custom home delivered by a registered Victorian builder, realistic 2026 ranges (excluding land, site costs and council contributions) are:

• Standard custom build: $3,800 – $4,800 / m²
• Architectural custom build with premium finishes: $4,800 – $6,500 / m²
• Coastal sites with BAL-29 or higher: add 8 – 15% over the equivalent inland build
• Steep or reactive sites: add $30,000 – $120,000 in site costs alone

Numbers below $3,500/m² on the Surf Coast in 2026 are usually missing something — most often the energy compliance package, the BAL upgrade, or the genuine cost of getting trades down the coast.

Greater Geelong vs Surf Coast Shire

The two councils that matter most for our region behave quite differently.

Greater Geelong is, for most established suburbs, relatively predictable. Single dwellings on existing lots in residential zones typically need a building permit only — no planning permit — provided ResCode setbacks and overlooking rules are met. Heritage overlays in central Geelong and parts of Newtown and Geelong West are the main exception.

Surf Coast Shire is materially more complex. Most desirable coastal land sits under one or more overlays:

• Design and Development Overlay (DDO) — height, materials, and roof-form controls in Torquay, Jan Juc, Anglesea and Aireys Inlet.
• Significant Landscape Overlay (SLO) — view-line and vegetation protection along the coast.
• Bushfire Management Overlay (BMO) — triggers a planning permit and a Bushfire Management Statement, even for a single dwelling.
• Erosion Management Overlay (EMO) — common on dune-edge and escarpment sites.

A planning permit on the Surf Coast adds 3 – 6 months to your program before the building permit even begins. Build that into the timeline from the start; do not assume you will get a fast-track.

BAL ratings change the building, not just the spec

A site's Bushfire Attack Level (BAL) is assessed under AS 3959 and ranges from BAL-LOW (negligible) through BAL-12.5, BAL-19, BAL-29, BAL-40 and BAL-FZ (flame zone). Most Surf Coast bush and bush-adjacent lots come back BAL-19 to BAL-29; some Aireys, Lorne and Wye River sites are BAL-40 or FZ.

Each step up changes real things:

• BAL-12.5/19: bushfire-rated window frames or screens, ember-proof gap detailing, non-combustible decking within 300mm of the dwelling.
• BAL-29: toughened glass minimums, non-combustible cladding on exposed elevations, sealed sub-floor.
• BAL-40: most timber cladding is off the table; you are in steel, fibre cement, masonry and bushfire-rated systems.
• BAL-FZ: bunker-grade construction, tested system assemblies only. Cost penalty is significant.

The cost difference between BAL-19 and BAL-40 on the same floor plan is often $80,000 – $180,000. The BAL assessment should happen before the design is locked, not after — otherwise you redesign.

Site costs people forget

Even with a good builder, the following routinely surprise owners:

• Service connections — power undergrounding on coastal estates can be $8 – $25k; sewer extensions on rural-residential lots considerably more.
• Bushfire water supply — a dedicated 10,000L tank with fire-brigade fitting if not on reticulated supply.
• Council contributions — Open Space Contribution (typically 5% of land value on subdivision) and any infrastructure levy.
• Coastal materials premium — marine-grade fixings, treated framing, salt-resistant finishes.

A sensible sequence

1. BAL assessment and overlay search before design.
2. Pre-application meeting with the relevant council planner.
3. Concept design priced at three levels (standard / mid / premium) before you commit.
4. Planning permit lodged with a Bushfire Management Statement if BMO applies.
5. Building permit, with the NatHERS and whole-of-home reports already finalised.

Doing it in that order is the difference between a 16-month program and a 28-month one.