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Can I subdivide my land in Brisbane?

Subdividing is 'reconfiguring a lot' in Queensland — and it always needs a development application. Whether it's straightforward comes down to the Brisbane City Plan minimum lot sizes for your zone. Here are the numbers, and a free way to test your plan.

Brisbane owners and small developers checking whether a block can be split — for a second home, a sale, or a townhouse site — before engaging a surveyor or planner.

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Subdivision = reconfiguring a lot (always a DA)

In Queensland, splitting a block is 'reconfiguring a lot', assessed under the Brisbane City Plan Subdivision Code (9.4.10). Unlike a granny flat, reconfiguring a lot is always assessable development — you always need a development application. What decides whether it's a straightforward, code-assessable application or a harder merit case is whether the resulting lots meet the City Plan minimum lot sizes for the zone.

Minimum lot sizes (Table 9.4.10.3.B)

The minimums depend on the zone and the lot type (standard, small or rear lot). A lot below the standard minimum isn't automatically refused — most residential zones allow small lots down to a lower floor, subject to conditions (width, minimum rectangle, slope, no more than a run of small lots).

Low density residential — standard lot 450 m² (14 × 20 m rectangle, 15 m average width)
Low density residential — small lots from 300–400 m² subject to conditions
Low density / Character — rear (battle-axe) lots 600 m²
Low-medium density residential — 600 m² standard, small lots down to 180–260 m² by precinct
Medium / High density residential — 800 m²
Emerging community — small lots from 350 m²; a structure plan is required

What trips a subdivision up

Beyond lot size: each lot needs a buildable rectangle on land under 1:5 slope, lawful road frontage and access, services (water, sewer, stormwater), and the dwelling-house sole-lot rule means you can't carve a granny flat onto its own title. Large or master-planned subdivisions — 20 or more lots, a new road, or any Emerging community site over 1 hectare — trigger a structure plan and a walkable-neighbourhood layout.

A simple 1-into-2 split in a residential zone is the most common case and is separately regulated, but the same Table B lot dimensions still set the bar.

Check your subdivision plan — free

Got a proposed plan of subdivision or a survey concept? Our free Brisbane plan compliance check reads the lot sizes and frontages off it and tests them against the Subdivision Code — telling you which lots meet the minimums and which need a performance-based case. No login, no charge.

For the full written assessment a council expects with a reconfiguration application, the Reconfigure of Lot (Subdivision) report covers the lot layout, pathway and supporting analysis.

Real example

Worked example

An 820 m² low-density block split into two ~410 m² lots, each with a 14 × 20 m rectangle and 15 m frontage, meets the standard-lot minimum — a clean code-assessable reconfiguration. Drop a lot to 350 m² and it's a small lot: still possible, but it has to satisfy the small-lot width, rectangle and slope conditions or be argued on merit.

The statutory basis

Reconfiguring a lot in Brisbane is assessed under the Brisbane City Plan 2014 Subdivision Code (section 9.4.10) and the Planning Act 2016. The minimum lot sizes are Table 9.4.10.3.B; a neighbourhood plan or the Traditional building character overlay can vary them. A 1-into-2 reconfiguration in a residential or industry zone is a regulated category of development under the Planning Regulation 2017.

Brisbane City Plan 2014 — Subdivision Code

Section 9.4.10 (AO1.1, Table 9.4.10.3.B)

Planning Act 2016 (Qld)

Reconfiguring a lot — assessable development

Planning Regulation 2017 (Qld)

Reconfiguring one lot into two — regulated category

Frequently asked questions

What's the minimum lot size to subdivide in Brisbane?

In the Low density residential zone the standard minimum is 450 m² (with a 14 × 20 m buildable rectangle and 15 m average width). Small lots are allowed from 300–400 m² subject to conditions, and rear lots are 600 m². Other zones differ — Low-medium density is 600 m² standard, Medium/High density 800 m².

Do I need a development application to subdivide?

Yes. Reconfiguring a lot is always assessable development in Queensland, so a development application is always required — even for a simple 1-into-2 split. Meeting the Table B lot dimensions makes it a straightforward code-assessable application.

Can I subdivide to sell my granny flat separately?

No. The Brisbane City Plan requires a dwelling house and its secondary dwelling to remain on a single lot — you can't subdivide to give the granny flat its own title.

What's a rear or 'battle-axe' lot?

A lot behind another, accessed by a narrow handle. In the Low density and Character zones the rear-lot minimum is 600 m² (excluding the access handle), with its own access-way width standards.

My block is in the Emerging community zone — can I subdivide now?

Emerging community land is intended for future urban use and a structure plan is required; sites over 1 hectare trigger the full Section C1 master-planning provisions. It's possible but more involved than a standard residential subdivision.

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