What a subdivision costs in Australia, per lot

Splitting a backyard or corner block into 2 to 4 lots in Australia costs about $45,000 to $90,000 per new lot in surveyor, council, headworks and civil charges on top of the land, while a 10 to 50 lot englobo subdivision runs closer to $120,000 to $135,000 in development cost per lot before land and margin. Location and lot count decide the swing.

A subdivision is priced by the lot, not the hectare. A backyard or corner block split into two to four lots pays much the same surveyor, council and connection bills whether the land is worth $500,000 or $1.5 million, and a 10 to 50 lot englobo project prices civil works and headworks the same way per lot regardless of the site's size. This guide sets out what a subdivision actually costs, state by state, from the first survey to the last title, the 2026 headworks and infrastructure charge tables, what a finished lot sells for, two worked examples, and how the civil works and lot sales are funded.

What a backyard or corner-block subdivision costs, per lot

A one-into-two or one-into-four split of an existing residential block is the cheapest way to create a new lot. Feasly's 2026 cost breakdown has a licensed surveyor at $8,000 to $12,000 for two lots plus $500 to $1,200 for each extra lot, a town planner at $3,500 to $8,000, a civil engineer at $3,000 to $10,000 and legal and conveyancing at $2,000 to $5,000. Council development application fees run from about $665 in regional areas to $5,000 or more for a complex urban lodgement, a subdivision certificate adds $1,500 to $3,500, and plan sealing and registration is $950 to $3,500 plus $330 to $1,000 per new title.

South Australia is the cheapest state to subdivide in because its headworks charges and council fees are the lowest in the country. New South Wales and Queensland are the most expensive once state and council infrastructure contributions are added, which is the next cost line and by far the biggest one.

Headworks and infrastructure charges by state

The infrastructure or headworks charge is what a council or the state charges for the net new lot's share of roads, parks, water and sewer capacity, and it dwarfs the professional fees on anything past a simple two-lot split. Every regime credits the lot that already exists, so a one-into-two split pays on one new lot and a one-into-four pays on three.

The Victorian growth areas rate is the one figure worth converting to a per-lot basis: at a standard 10 to 15 lot per hectare yield, $122,260 a hectare works out to roughly $8,000 to $12,000 per lot, before the council's own development infrastructure levy and open space contribution are added on top.

Water, sewer connection and civil works per lot

Water and sewer is priced two ways: a compliance certificate confirming the lot can connect, and the physical headworks and connection cost. Sydney Water's Section 73 Compliance Certificate application costs $1,202.92 including GST, on top of any infrastructure contribution the certificate identifies. Queensland's Urban Utilities and the other SEQ retailers fold water and sewer into the council infrastructure charge shown above rather than billing it separately on a small lot subdivision. In Melbourne's south east and outer east, South East Water and Yarra Valley Water charge a New Customer Contribution per lot, set by the Essential Services Commission and published annually in each retailer's pricing handbook. In Perth, Water Corporation's headworks contribution of about $7,600 per lot is the equivalent charge.

Civil works, the physical roads, stormwater, power and NBN a subdivision has to build, scale with lot count rather than land value. On a small 2-lot split, underground stormwater drainage runs $18,000 to $35,000 for the whole job, electrical connection $550 to $6,000 per lot (more if a pole has to move), NBN $2,000 to $3,000 per lot and a new driveway crossover $2,500 to $4,500 per lot. On a 10 to 50 lot englobo subdivision the same items are delivered as trunk infrastructure, and the Colliers Engineering and Design 2026 Cost Per Lot Report, drawn from about 10,000 lots across Melbourne's Cardinia, Casey, Greater Geelong, Hume, Melton, Mitchell, Whittlesea and Wyndham growth corridors, has internal civil works averaging $64,700 per lot in 2025, down 6.8% on 2024 as construction demand eased. Authority charges moved the other way, up 18.8% over the same year, and rocky subgrade in the northern and western corridors adds about 20% to drainage, sewer and earthworks budgets against the clay-based south east.

Titling, timeframes and what a finished lot sells for

The last cost is turning the approval into titles: a survey-compliant plan, council or certifier sign-off and lodgement with the land titles office, running $950 to $3,500 for plan sealing plus $330 to $1,000 per individual title. Total time from lodging the application to registered titles varies by state and pathway.

What the finished lot is worth is the other half of the sum. UDIA's State of the Land 2026 report, based on lot sales to late 2025, has the median greenfield lot at $695,000 in Greater Sydney (up 4%), $488,360 in South East Queensland (up 17%), $405,375 in Greater Melbourne (up 0.7%), $377,250 in Greater Perth (up 15%) and $377,135 in Greater Adelaide (up 23%), on a national release of 44,950 lots in 2025, up 3% on 2024. Adelaide and Perth have the cheapest median lot and the fastest price growth, which is why outer-corridor englobo margins have held up better there than in Sydney, where the median lot price barely moved.

Worked example: a 1,200 m2 corner block split into three lots

The figures below are indicative and assembled from the sources in this guide: a 1,200 square metre corner block in Brisbane's middle ring, carrying a post-war house, bought for $700,000, demolished and subdivided into three 400 square metre Torrens title lots, each sold vacant. Finance is a 70% loan to cost facility at 9% p.a. over 10 months. Figures are ex GST on the basis the owner is registered and the sale is taxed under the margin scheme.

Revenue: three new 400 square metre Torrens lots at an indicative $450,000 each gives a gross realisation value of $1,350,000. Under the margin scheme GST is one eleventh of the sale price less the land cost, so ($1,350,000 less $700,000) divided by 11 is $59,091, and net realisation is $1,290,909. Against $982,700 of total cost that is a profit of about $308,200, or 31% on cost, roughly $103,000 per lot. That is a stronger result than a knock-down-rebuild duplex on the same size block, because a bare lot carries no build cost or build risk, only the subdivision and holding cost.

Worked example: a 20-lot englobo subdivision

The figures below are indicative and assembled from the sources above: a 2 hectare superlot in a Melbourne growth corridor, one of the Cardinia, Casey, Melton, Whittlesea or Wyndham corridors the Colliers report covers, rezoned and subdivided into 20 lots averaging 450 square metres after roads and a small open space set-aside. Development cost is the Colliers Engineering and Design 2026 average of $126,811 per lot, made up of $64,700 in internal civil works and the balance in authority charges, contributions and consultants. Revenue uses the UDIA median Melbourne lot price of $405,375. The land price is solved as a residual: what the site could be bought for and still clear a 20% margin on total cost, the threshold most non-bank lenders want before they will fund the civil works.

That residual land price of about $3.74 million for the 2 hectare parcel, roughly $1.87 million a hectare, is what a developer can afford to pay and still clear the 20% margin line. Pay more for the raw land and the margin falls below that; the site has to be bought on the numbers, not on what the vendor is asking. The $126,811 per lot cost and $405,375 lot price scale linearly, so a 10 lot, 1 hectare project on the same corridor clears the same 20% margin at the same residual rate, about $1.87 million a hectare.

Financing a subdivision

Land subdivision finance is priced off two values, the raw land today and the as-if-subdivided value once titles are close to registering, and the loan moves between them as the project derisks. Banks lend around 50 to 65% of raw land value or cost for a subdivision-ready site with an experienced borrower and a clear exit, at bank bill plus 3 to 5%. Non-bank lenders go further, 65 to 75% of cost or up to 70% of the as-if-subdivided value once the plan of subdivision is approved, at 8.5 to 13% p.a., and private lenders reach 70 to 80% of cost on a shorter, dearer facility of 10.75 to 14% p.a. with a term sheet inside days. Private and non-bank development lending is typically business purpose and not consumer regulated; all finance is subject to lender assessment.

Civil works are usually drawn separately from the land facility, released against a quantity surveyor's certified progress, and most lenders want presales or exchanged contracts on a portion of the lots before funding starts, commonly 30 to 50% by value for a non-bank facility and less for a well capitalised repeat developer. As each title registers, that lot is released from the security and its sale proceeds repay a slice of the facility, so the loan balance steps down lot by lot rather than in one settlement. Equity release off raw land you already own sits under property finance, the civil works themselves under construction finance, and the wider capital stack, including mezzanine for the land-to-titled-lot gap, under development finance. Compare the cost of a two dwelling build instead of a lot split on our duplex development cost guide, and see what an already-approved subdivision site trades for on what DA-approved sites sell for. To get a number from Ventas, send the site address and lot yield, the plan of subdivision or concept plan, the civil cost estimate, presale status and your equity.

This is general information only and not financial, credit, or tax advice. Figures are indicative market data from the sources listed, not Ventas offers, and move with the market. Consider your own circumstances and speak to a professional. All finance is subject to lender assessment and approval.

This article is general information only and not financial, credit, or tax advice. Ventas Asset Lending is a finance broker, not a lender. Approvals are subject to lender assessment. Consider your own circumstances and speak to a qualified professional, including your accountant for any tax questions.