Planning guide
Minimum frontage and lot size for subdivision, state by state
Most pages on this question print a table of state minimums. We checked every figure against the instruments that are supposed to set them, and almost none of it held up. Here is what is actually true.
Written and verified by Struqt’s registered architects · Last verified August 2026
There is no state or national universal minimum figure for subdivision. Typically these are set by your zoning, specific council and can also vary by development type. Therefore subdivision viability varies by state, council, suburb and even down to a specific address. Falling short of a set figure doesn't always mean subdivision isn't viable either, it may mean you need to do some more investigation.
Sources: NSW Standard Instrument LEP Order 2006, cl 4.1 · SEPP (Housing) 2021 (NSW), Chapter 6 · Victoria Planning Provisions · Planning Regulation 2017 (Qld)
Who actually sets the number, state by state
This is a table of who decides subdivision figures. Three of the eight hand the number to your council outright and a fourth sets it per address, so for half the country a single national figure does not exist to be printed.
New South Wales
Council sets itNo general state minimum. The number is determined by your council's mapping.
Your council decides. There's no state-wide minimum. Look up your address on your council's Lot Size Map. That map shows the smallest lot you're allowed to create. (This doesn't apply if you're subdividing a strata or community-title block, which work differently.)
Standard Instrument (LEP) Order 2006, cl 4.1(3) and cl 4.1(4)
Victoria
Council sets itMostly no. Only one type of residential zone can carry a minimum at all, and the rest have none.
Your council decides, but only in one type of residential area. Most residential zones set no minimum lot size at all. The exception is the Neighbourhood Residential Zone, where a council can attach a minimum. One state-wide rule catches everyone though: if you create a new lot under 400m² that can fit a house, 25% of it must be garden.
Victoria Planning Provisions, cl 32.09-3; garden area at cl 32.08-3 and 32.09-3
Queensland
Council sets itNo, not for suburban land. The state leaves the number to your council (with one rural exception).
Your council decides. The state hands lot size and street frontage straight to your council's planning scheme. There's only one state-made rule, and it's for rural land, not suburbs: in South East Queensland's rural areas, you generally can't create a lot smaller than 100 hectares.
Planning Regulation 2017 (Qld) sch 12 s1(1)(c) and s3(a); sch 10 pt 16 s23 for the SEQ 100ha rule
Western Australia
State figure existsYes. State-wide numbers apply through your R-code, though your council can adjust them.
There are state-wide numbers, tied to your R-code. Your land is assigned a code (like R20 or R5) that comes with set figures. At R20 the code gives three numbers, not one: a minimum site area of 350m², a separate average site area of 450m², and 450m² again as the minimum for a rear or battle-axe lot. The 10m frontage that goes with R20 applies to single houses only. These are the standard benchmarks, though your council can adjust them.
R-Codes Volume 1 (April 2026), Part D cl 1.1, Table D
South Australia
Set per addressNot really. The number is set per address rather than by a single state figure.
The number is tied to your specific address. The Planning and Design Code gives each zone a default, but address-by-address variations can override it, so your block and your neighbour's can have different numbers. The often-quoted 300m² and 9m figures are a “compliant path”, not a hard limit: fall short and your application gets individually assessed rather than automatically refused.
Planning and Design Code, zone Deemed-to-Satisfy criteria read with the Technical and Numeric Variations that apply to the land
Tasmania
State figure existsYes, but they're targets you can argue around, not hard minimums.
There are state-wide numbers, but they're a target, not a wall. In the General Residential Zone, the standard is a 450m² lot with a 12m frontage that can fit a 10m × 15m building area on reasonably flat ground. A smaller or narrower lot can still be approved if it meets performance criteria.
Tasmanian Planning Scheme State Planning Provisions cl 8.6.1 A1 and A2 (Version 16)
ACT
State figure existsYes, but they're published as guidance, not a fixed legal floor.
There are territory-wide block sizes (350m² in RZ1, down to 250m² in RZ4 and RZ5), but they're guidance, not a fixed minimum. Two other things also decide whether you can subdivide at all: what your Crown lease says your land is for, and a charge that applies when you change it. Neither of those is captured by a lot-size number.
Planning (Subdivision) Technical Specifications 2026 (NI2026-304), Specification 2.2
Northern Territory
State figure existsYes. A genuine territory-wide figure, since the NT has no councils.
A real territory-wide number applies, because the NT has no councils. In the standard low-density zone, the minimum lot is 800m², and approvals can go up to 5% smaller. There's no frontage minimum for a standard lot, and battle-axe lots aren't allowed. Lots of 600m² or more must fit a 17m × 17m building area clear of setbacks.
NT Planning Scheme 2020 (30 March 2026), cl 6.2.1 Tables A and B
| State / territory | Is there a state-made figure? | Who sets the number for your block |
|---|---|---|
| New South Wales | Council sets it No general state minimum. The number is determined by your council's mapping. | Your council decides. There's no state-wide minimum. Look up your address on your council's Lot Size Map. That map shows the smallest lot you're allowed to create. (This doesn't apply if you're subdividing a strata or community-title block, which work differently.) Standard Instrument (LEP) Order 2006, cl 4.1(3) and cl 4.1(4) |
| Victoria | Council sets it Mostly no. Only one type of residential zone can carry a minimum at all, and the rest have none. | Your council decides, but only in one type of residential area. Most residential zones set no minimum lot size at all. The exception is the Neighbourhood Residential Zone, where a council can attach a minimum. One state-wide rule catches everyone though: if you create a new lot under 400m² that can fit a house, 25% of it must be garden. Victoria Planning Provisions, cl 32.09-3; garden area at cl 32.08-3 and 32.09-3 |
| Queensland | Council sets it No, not for suburban land. The state leaves the number to your council (with one rural exception). | Your council decides. The state hands lot size and street frontage straight to your council's planning scheme. There's only one state-made rule, and it's for rural land, not suburbs: in South East Queensland's rural areas, you generally can't create a lot smaller than 100 hectares. Planning Regulation 2017 (Qld) sch 12 s1(1)(c) and s3(a); sch 10 pt 16 s23 for the SEQ 100ha rule |
| Western Australia | State figure exists Yes. State-wide numbers apply through your R-code, though your council can adjust them. | There are state-wide numbers, tied to your R-code. Your land is assigned a code (like R20 or R5) that comes with set figures. At R20 the code gives three numbers, not one: a minimum site area of 350m², a separate average site area of 450m², and 450m² again as the minimum for a rear or battle-axe lot. The 10m frontage that goes with R20 applies to single houses only. These are the standard benchmarks, though your council can adjust them. R-Codes Volume 1 (April 2026), Part D cl 1.1, Table D |
| South Australia | Set per address Not really. The number is set per address rather than by a single state figure. | The number is tied to your specific address. The Planning and Design Code gives each zone a default, but address-by-address variations can override it, so your block and your neighbour's can have different numbers. The often-quoted 300m² and 9m figures are a “compliant path”, not a hard limit: fall short and your application gets individually assessed rather than automatically refused. Planning and Design Code, zone Deemed-to-Satisfy criteria read with the Technical and Numeric Variations that apply to the land |
| Tasmania | State figure exists Yes, but they're targets you can argue around, not hard minimums. | There are state-wide numbers, but they're a target, not a wall. In the General Residential Zone, the standard is a 450m² lot with a 12m frontage that can fit a 10m × 15m building area on reasonably flat ground. A smaller or narrower lot can still be approved if it meets performance criteria. Tasmanian Planning Scheme State Planning Provisions cl 8.6.1 A1 and A2 (Version 16) |
| ACT | State figure exists Yes, but they're published as guidance, not a fixed legal floor. | There are territory-wide block sizes (350m² in RZ1, down to 250m² in RZ4 and RZ5), but they're guidance, not a fixed minimum. Two other things also decide whether you can subdivide at all: what your Crown lease says your land is for, and a charge that applies when you change it. Neither of those is captured by a lot-size number. Planning (Subdivision) Technical Specifications 2026 (NI2026-304), Specification 2.2 |
| Northern Territory | State figure exists Yes. A genuine territory-wide figure, since the NT has no councils. | A real territory-wide number applies, because the NT has no councils. In the standard low-density zone, the minimum lot is 800m², and approvals can go up to 5% smaller. There's no frontage minimum for a standard lot, and battle-axe lots aren't allowed. Lots of 600m² or more must fit a 17m × 17m building area clear of setbacks. NT Planning Scheme 2020 (30 March 2026), cl 6.2.1 Tables A and B |
Where a genuine state-made figure does exist
A few real state-wide figures exist. But each one applies more narrowly than it first appears, and it matters whether the figure is a hard limit or just a starting benchmark you can argue around.
- NSW: 450m² and 12m for a dual occupancy, inside a mapped low and mid rise housing areaThis is a “non-discretionary development standard”, meaning it protects you rather than restricts you. If your proposal meets it, the council can't refuse on that ground or demand anything stricter. If it falls short, you simply lose that protection and the proposal goes back to ordinary merit assessment. It's not state-wide, either: it applies only within roughly 800m walking distance of a mapped town centre or listed station, and land that's heritage, environmentally sensitive, near pipelines, under aircraft noise, or flood-affected is carved out.SEPP (Housing) 2021 s168(2), read with s163, s164 and EP&A Act 1979 s4.15(2) and (3)
- NSW: 225m² and 6m per lot when subdividing an approved dual occupancyAnother protective standard, not a hard limit, but a tightly conditioned one. It's available in Zones R1, R2 and R3 only, and this is where a commonly repeated version gets it wrong: it does not extend to R4. Each resulting lot must contain no more than one dwelling, have lawful access and frontage to a public road, and must not be a battle-axe lot, which rules out the flag-shaped layout most narrow deep sites would otherwise rely on. Strata subdivision is excluded, and the dual occupancy consent must have been granted, or the application made, on or after 28 February 2025. Separate standards again apply to multi dwelling housing and to terraces.SEPP (Housing) 2021 s169(1) to s169(4); terraces and multi dwelling housing at s172 and s173
- VIC: 40 hectares in the Farming Zone, a default that can be overriddenThis is a fallback figure, not a fixed minimum. The clause checks the council's schedule first and only falls back to 40 hectares if there isn't one, so a council whose Farming Zone schedule sets its own area gives a different answer. The same clause allows smaller lots in four specific situations. Two common ones: splitting a block in two so an existing house sits on its own lot, and redrawing boundaries without creating any extra lots. No frontage requirement applies.Victoria Planning Provisions cl 35.07-3 (amended by VC271, effective 5 February 2026)
- QLD: 100 hectares in the South East Queensland regional landscape and rural production areaUnlike every other figure here, this one is a hard limit a council cannot soften, worth knowing before you spend anything. Subdivision of land in that area is prohibited unless each created lot is at least 100 hectares, regardless of what the local scheme says. Urban and residential zones in Queensland remain entirely a matter for the council scheme.Planning Regulation 2017 (Qld) sch 10 pt 16 s23
Why frontage stops more subdivisions than lot size
Land area often gives hope for subdivision, but frontage is the quieter constraint. A 700m² block with 15m of frontage can sometimes divide into two street-fronting lots where a 900m² block with only 12m cannot, because the second lot has no legal street access without becoming a battle-axe arrangement (one house behind the other).
Battle-axe lots then bring their own rules, and these differ sharply from state to state. Some schemes set a minimum width for the access handle (driveway). Some require the rear lot to be larger. NSW's dual occupancy subdivision standard rules battle-axe lots out entirely, as does the NT scheme, while Tasmania expressly allows a shared driveway as narrow as 3.6m to reach the rear lot.
And that's the catch: frontage rules are set state by state, with no national standard. So what matters is the specific rule that applies to your block.
Whether a split is worth doing at all is a separate question from whether it is permitted. The feasibility method runs the planning gates first for exactly this reason, and the minimum site area entry defines the term as it appears on a report.
How to measure the frontage on an awkward block
Frontage is just the width of your block where it meets the street. On a plain rectangular block that's easy to measure, but on a corner, curved, or oddly shaped block the useful figure is often smaller than it looks. What counts is the stretch wide enough to actually fit a driveway and give a new lot its own access, not the full length of every edge facing a road.
For a battle-axe block, where the rear lot reaches the street down a narrow “handle”, a rough working figure is a handle around 3 to 3.6m wide for one rear lot, though the real minimum is set by your council or state.
Odd-shaped blocks rarely resolve on a rule of thumb, so they usually need a closer look and sometimes a custom access arrangement to work at all.
Why the numbers you find elsewhere are usually wrong
- A single council's number, printed as a state's. This is the most common error in the pages that do publish a table. Brisbane's low density residential figures are Brisbane's, not Queensland's, and Queensland sets no residential figure at all.
- A compliance benchmark, printed as a minimum. Many state figures are compliance benchmarks, a fast-track “if you meet this, you're fine” test, with a merit pathway behind them for anything that falls short. That covers acceptable solutions in Tasmania, deemed-to-comply figures in WA, deemed-to-satisfy criteria in SA, and technical specifications in the ACT. Presenting any of them as a hard floor tells a reader a project is impossible when it's merely harder.
- A repealed clause, still being cited. The WA site-area figures were relocated within the code (out of clause 5.1.1 and into Part D) in 2024, and the codes were republished in April 2026. Any page still citing the old clause is quoting a version that no longer reads that way.
- One number where the instrument gives three. At R20 in Western Australia there is a minimum site area, a separate average site area, and a separate figure again for a rear or battle-axe lot. Any page that prints one of the three as the minimum is wrong about the other two.
Key takeaway: If a page gives you one number for your state, check what kind of number it is before you act on it. A minimum, an average, an acceptable solution and a deemed-to-comply benchmark are four different things, and only one of them is a floor.
Frequently asked questions
How much land do I need to subdivide my block in Australia?
There is no national figure, and in New South Wales, Victoria and Queensland there is no state figure for residential land either: those states hand the number to your council's planning scheme or lot size map. Western Australia, Tasmania, the ACT and the Northern Territory do publish territory-wide numbers, but most of them are compliance benchmarks with a merit pathway behind them rather than hard floors. The figure that governs your block is the one attached to your address.
What is minimum frontage, and how is it measured?
Frontage is the width of your block where it meets the street. On a corner, curved or oddly shaped block the usable figure is often smaller than it looks, because what counts is the stretch wide enough to fit a driveway and give a new lot its own access, not the full length of every edge facing a road. Instruments also differ on where they measure from: some at the street boundary itself, some at the front building line, which can give two different answers on the same block. New South Wales, for example, sets its dual occupancy widths at the front building line rather than at the boundary.
Can I subdivide a block with a narrow frontage?
Sometimes, through a battle-axe lot, where the rear lot reaches the street by a handle or a right of carriageway. The rules vary more than any other part of subdivision: the NSW dual occupancy subdivision standard and the NT scheme both prohibit battle-axe lots outright, Western Australia sets a separate minimum area for a rear lot, and Tasmania's performance criteria contemplate access as narrow as 3.6m.
Do all councils use the same minimum lot size?
No, and in most of Australia that is the whole design of the system rather than an inconsistency. The state instrument sets the framework and the council's scheme or map sets the number, so the same zone code can carry different minimums two councils apart, and sometimes two streets apart where a lot size map changes.
Related guides
Check your own block
The number that governs your block is the one attached to your address: your zone, your council's schedule, your overlays. A Struqt report resolves that chain for any Australian address, labels an address-specific rule where one exists, and says plainly when the figure is your council's rather than your state's.