Shed & garage rules in Australian Capital Territory (2026)
DA-exempt within limits, but building approval still needed
A Class 10a shed can be 'exempt development' — no development application (DA) — if it's within the size, height and siting limits (up to 20 m² in residential zones, more in rural zones). But in the ACT you still need a separate building approval for most sheds.
Key rules at a glance
| Max plan area (exempt, residential) | 20 m² |
| Max plan area (exempt, rural RU zones/R5) | 50 m² (up to 216 m² for genuine rural landholders) |
| Max height | 3 m above datum ground (up to 4 m under a 30° plane from the boundary) |
| Position on lot | Behind the front building line |
| Boundary clearance | Within 1.5 m of a boundary, combined wall cross-section ≤30 m² |
| Building approval | Still required separately for most sheds, even if DA-exempt |
Conditions & eligibility
- The structure must be single storey, non-habitable and ancillary to the dwelling
- Solar and overshadowing (solar building envelope) rules apply near boundaries
- Exempt status is lost on heritage-registered blocks and under some overlays
- A building approval (and a licensed builder for work over the owner-builder limit) is still needed
- Rural blocks get a larger allowance but must meet the rural siting rules
Heritage, flood and bushfire controls on your specific lot can remove the fast-track and require a full application, even when the general rules say you're fine.
How approval works in Australian Capital Territory
The ACT keeps the DA and the building approval separate. A shed meeting the Planning (Exempt Development) Regulation 2023 criteria is exempt from a DA. Even when DA-exempt, a building approval from a licensed building certifier is required for most sheds. If the shed exceeds the exemption limits you need a DA as well.
The ACT is a single jurisdiction with no separate councils, so the Planning (Exempt Development) Regulation 2023 and its zone-based size limits apply territory-wide.
Sheds & Garages rules by council in Australian Capital Territory
Local councils apply the Australian Capital Territory framework and can add their own controls. Pick your council:
Frequently asked questions
Do I need approval for a shed in the ACT?
A shed up to 20 m² in a residential zone (more in rural zones), no higher than 3 m and behind the building line, is exempt from a development application. You'll still generally need a separate building approval.
How big can a shed be without a DA in Canberra?
Up to 20 m² in residential zones and up to 50 m² in rural zones (RU1–RU4, R5) as exempt development, with genuine rural landholders allowed larger structures again.
Is exempt from a DA the same as no approval in the ACT?
No. Exempt development only removes the development application. Most sheds still need building approval from a licensed building certifier before you start.
Sources
- Planning (Exempt Development) Regulation 2023 — ACT Legislation Register ↗
- Check if you need a DA — ACT Planning ↗
Related building rules
This is general guidance, not professional planning advice. Figures are summarised from the sources above and can change — confirm with your council or the ACT Planning before starting work. Last reviewed: July 2026.
Talk to a town planner in Australian Capital Territory
This page covers the general rules. A qualified town planner can tell you what applies to your block, including the zone, overlays and approval path, before you spend money on drawings.
- Qualified, practising town planners
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