Can an irregular-shaped block still be developed?
Yes. An irregular-shaped block can still be developed. There is no general requirement in the current ACT residential planning framework that a block must be square or rectangular. However, the shape of the block can affect the type, size and layout of development that can fit on the site, because the proposal must still satisfy the applicable planning requirements, such as setbacks, site coverage, building separation, private open space, planting, access and parking. The current Residential Zones Technical Specifications have been in effect since 1 July 2026.
An unusual block shape does not automatically prevent development. What matters is whether a compliant and functional development can be designed within the actual boundaries of the block.
For example, a triangular block may become very narrow toward the rear. Once the required side and rear setbacks are applied, there may be less usable space for a building than on a rectangular block of the same overall area.
The design may therefore need to be adjusted to suit the site's shape.
Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303) - Planning (Residential Zones) Technical Specifications 2026 | PDF
Link on the answer: https://www.legislation.act.gov.au/View/ni/2026-303/current/PDF/2026-303.PDF
Where this question is kept
| Dual Occupancy Q&A | #480 | agrees | 26/08/2026 |