How much does a granny flat cost in Geelong?
A granny flat in Geelong costs $101,000–$147,000 for a turnkey 1-bedroom build (35–45m²), $129,000–$193,000 for a 2-bedroom (around 60m²), and from about $74,000 supplied for a prefab or kit unit. Per square metre, turnkey builds run $2,100–$3,200/sqm depending on design, site, and finishes.
Detailed Pricing — Geelong 2026
| Service | Low | Typical | High |
|---|---|---|---|
| Prefab / kit granny flat — 1-bed (supplied) | $74,000total | $87,000 | $110,000 |
| Studio / 1-bed granny flat (35-45m², turnkey) | $101,000total | $120,000 | $147,000 |
| 2-bed granny flat (~60m², turnkey) | $129,000total | $161,000 | $193,000 |
| Custom / premium 2-bed (high-end finishes) | $193,000total | $239,000 | $294,000 |
| Two-storey or with attached garage | $258,000total | $317,000 | $391,000 |
| Garage / outbuilding conversion | $37,000total | $69,000 | $110,000 |
| Turnkey build (per m² built) | $2,100/sqm | $2,600 | $3,200 |
| Site works + service connections | $14,000total | $23,000 | $37,000 |
| Building permit (small second dwelling) | $3,000total | $6,000 | $11,000 |
| Demolition / site clearing (if needed) | $3,000total | $6,000 | $14,000 |
| Driveway, path & basic landscaping | $5,000total | $9,000 | $18,000 |
| Privacy fencing (per m) | $140/m | $200 | $280 |
Getting quotes for a granny flat in Geelong? Get a quote from a verified local builder — free, no obligation.
Get Geelong quotes →Prices include GST. Based on Geelong metro area, Mar 2026. Outer suburbs may vary.
Geelong’s Granny Flat Market in 2026
Geelong has one of Australia’s busiest granny flat markets. High property prices, multi-generational living, and strong rental demand make a secondary dwelling one of the higher-return additions a Geelong homeowner can make — a 2-bedroom granny flat rents well and can lift property value by 10–30%. Victoria’s small second dwelling reforms apply in Geelong too, and lower land costs make a backyard build a strong-value rental addition.
The biggest swing in price is build method. Prefab and modular units (from about $74,000 supplied) are the budget end; standard site-built 1- and 2-bedroom homes ($101,000–$193,000 turnkey) are the mainstream; and custom or two-storey builds run $193,000–$391,000+. Site works and service connections ($14,000–$37,000) and approvals are the costs homeowners most often underestimate.
On the rules: In Victoria a small second dwelling up to 60m² can often be built without a planning permit (subject to overlays), though a building permit is still required and it cannot connect to reticulated natural gas. Build method and finishes lead the price, with a building permit and site works on top.
We’ve compiled pricing from Geelong granny flat builders, prefab suppliers, and trade databases to give the most accurate picture of granny flat costs in Geelong for 2026.
How Granny Flat Costs Vary Across Geelong
Central & Newtown
Typical cost: $147k–$276k turnkey
Newtown, Geelong West, East Geelong, Manifold Heights. Established blocks and renovated homes; heritage areas can limit siting. Quality detached builds.
Bellarine Peninsula
Typical cost: $147k–$276k turnkey
Ocean Grove, Barwon Heads, Drysdale, Leopold. Coastal and holiday-home blocks with strong rental demand. Detached builds with coastal detailing.
Highton & South
Typical cost: $138k–$258k turnkey
Highton, Belmont, Grovedale, Wandana Heights. Family suburbs on the hills and flats with good access. Standard detached 2-bed builds.
Northern Suburbs
Typical cost: $110k–$212k turnkey
Corio, Norlane, Lara, North Shore. The most affordable area — flatter blocks and easy access. Best value and strong yields.
Armstrong Creek & Growth
Typical cost: $110k–$212k turnkey
Armstrong Creek, Charlemont, Mount Duneed, Torquay. Fast-growing estates on flat land suit prefab and standard builds.
What You’ll Actually Pay — Common Geelong Granny Flat Builds
Here’s what typical granny flat projects cost all-in across Geelong in 2026, including build, standard site works, services, and approvals where noted.
1-bedroom granny flat — 40m², turnkey
$101,000–$138,000 total
The go-to Geelong build for one tenant or a family member. A detached one-bedroom home — bedroom, bathroom, kitchenette and living — with standard finishes, slab and connections. Allow roughly 12–14 weeks once approval is through.
2-bedroom granny flat — 60m², turnkey
$138,000–$193,000 total
The strongest rental option — two bedrooms, a full bathroom and a real kitchen. Standard-to-mid finishes with slab, services and approval rolled in. Budget 14–16 weeks of build time once approved; it’s the bread-and-butter Geelong investment build.
Prefab / modular 2-bed — installed
$87,000–$147,000 total
Factory-built and craned in, then connected to services on a prepared slab. Faster than site-built and priced lower, with less on-site disruption. Site works, slab and connections are usually quoted on top of the supplied unit price.
Garage / outbuilding conversion to studio
$41,000–$87,000 total
Turning a garage or outbuilding into a studio is the lowest-cost path to a secondary dwelling — though adding plumbing, a bathroom and kitchenette, insulation and compliance upgrades is where the money goes. Best value when the slab and walls are already sound.
Custom architect 2-bed / two-storey
$239,000–$391,000 total
A top-end, architect-designed build — premium finishes, a bigger footprint or a two-storey layout on a tight block. Design and engineering are required; you’ll see these most across the established western suburbs where land values justify the outlay.
What Affects Granny Flat Costs in Geelong
Build method
The cheapest path is a prefab/kit unit (from ~$74,000 supplied); a standard site build is the middle ground, and custom or two-storey designs sit at the top.
Size & bedrooms
Expect $101,000–$147,000 for a turnkey 1-bed (35–45m²) and $129,000–$193,000 for a 2-bed (~60m²) — 60m² being the usual size cap.
Site works & access
Slope, rock, poor access and craneage add $14,000–$37,000. Flat, clear, easy-access blocks are far cheaper to build on.
Service connections
Water, sewer, power and stormwater connections add cost — keeping wet areas near the main house’s services keeps plumbing runs short.
Approvals
In Victoria a small second dwelling up to 60m² can often be built without a planning permit (subject to overlays), though a building permit is still required and it cannot connect to reticulated natural gas.
Finishes & inclusions
Standard finishes keep costs down; stone benchtops, premium flooring, decks and air-conditioning push a build toward the top of the range.
How to Save Money on a Granny Flat in Geelong
Frequently Asked Questions
Our Methodology
We build these estimates by pulling pricing from public cost guides, major trade marketplaces, industry body rate data, and builders’ own websites, then cross-checking the ranges and adjusting for local cost-of-living and advertised labour rates. The figures are editorially independent and no business pays to change them. Treat every number as a guide rather than a quote — the only way to know your real price is to get a few written quotes. Last reviewed June 2026. Read our full methodology →