Deck & pergola rules in Canterbury-Bankstown
City of Canterbury-Bankstown assesses these under the New South Wales rules below. Heritage, flood or bushfire mapping on your own lot can change what you need to apply for.
Often no approval needed if within exempt limits
A deck, balcony or patio can be built as exempt development, with no DA or CDC, if it is no more than 25 m² in area, its floor is no higher than 1 m above ground, it is no more than 3 m high at its highest point, and it sits behind the building line at least 900 mm from the lot boundary. It cannot be exempt on a heritage item or in a foreshore area. All such structures on the lot together are capped at 15% of the house's ground floor area on a lot over 300 m², or 25 m² on a lot of 300 m² or less. Bigger or higher structures need a Complying Development Certificate or a Development Application.
Key rules at a glance
| Max floor area (no approval) | 25 m² for each deck, balcony or patio. All such structures on the lot together: up to 15% of the house's ground floor area on a lot over 300 m², or 25 m² on a lot of 300 m² or less |
| Max height above ground | Floor no more than 1 m above existing ground level, and no more than 3 m at the highest point |
| Enclosing walls | No higher than 1.4 m |
| Setback from boundary | At least 900 mm from the lot boundary, and behind the building line of any road frontage |
| Pergolas and roofed structures | Same standards, up to 25 m² and 3 m high. A roof must not overhang by more than 600 mm on each side, and a roofed structure attached to the house must not extend above its roof gutter line |
| Rural zones setback | 5 m from the lot boundary in zones RU1, RU2, RU3, RU4, RU6 and R5 |
| Bush fire prone land | A deck on bush fire prone land can still be exempt, but within 5 m of a dwelling it must be built of non-combustible material |
| Heritage and foreshore | Not exempt on or in a heritage item or draft heritage item (State or local), or on land in a foreshore area, so approval is needed there |
Heritage and foreshore controls on your specific lot can remove the fast-track and require a full application, even when the general rules say you're fine. Flood and bushfire mapped on your lot add requirements, but do not on their own close the fast-track route.
How often this applies in Canterbury-Bankstown
These are the overlays that can remove the fast-track, measured across every parcel in Canterbury-Bankstown from the same data behind our zoning map. They describe the council, not your block, and they are counted separately — one parcel can carry more than one, so they cannot be added together.
| Overlay | Share of parcels | What that means here |
|---|---|---|
| Heritage | 2.79% | 2,727 parcels flagged. The rest are mapped and sit outside it. |
| Flood | 0% | 3 parcels flagged. 100% of the council has no flood mapping, so we can't say for those parcels. |
| Bushfire | 5.17% | 5,046 parcels flagged. The rest are mapped and sit outside it. |
The most common zone in Canterbury-Bankstown is Low Density Residential, covering 56.0% of its 97,643 parcels. What you can build is decided by your own lot's zone, not the council's most common one.
Measured from our mapped parcel data, snapshot taken 2026-11-08. Overlays are checked live for a specific address on the address tool.
Deck or pergolas in Canterbury-Bankstown
City of Canterbury-Bankstown is the authority for Canterbury-Bankstown in Sydney. The statewide New South Wales rules above set the baseline; the council can apply extra local controls, and heritage, flood or bushfire overlays on your lot can change what's allowed.
Visit City of Canterbury-Bankstown ↗ Full New South Wales rules →
See the Canterbury-Bankstown zoning map →, showing every parcel in Canterbury-Bankstown by zone, lot size and mapped constraints.
Frequently asked questions
Do I need council approval for a deck or pergola in Canterbury-Bankstown?
Often not. New South Wales allows a deck or pergola to proceed without a full development application when it meets the standards, and City of Canterbury-Bankstown follows that framework. But local overlays — heritage, flood or bushfire — can remove the fast-track, so check your exact address before you rely on it.
Which council approves a deck or pergola in Canterbury-Bankstown?
City of Canterbury-Bankstown is the consent authority for Canterbury-Bankstown (Sydney). You can review local planning controls on the council website and lodge through your state planning portal.
Do I need council approval to build a deck in NSW?
Not if it qualifies as exempt development: no more than 25 m² in area, a floor no higher than 1 m above ground, no more than 3 m high overall, behind the building line and at least 900 mm from the lot boundary. On a lot over 300 m², all decks and patios together are capped at 15% of the house's ground floor area. Outside those limits you need a CDC or a DA.
Sources
- Balconies, decks and patios - NSW Planning ↗
- Balconies, decks, patios, pergolas, terraces and verandahs - Rules for exempt development (NSW DPE) ↗
- Understanding exempt development (NSW DPE) ↗
- State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, clauses 1.16, 2.11 and 2.12 - NSW legislation ↗
Related building rules
General guidance only. Not professional planning advice. Local requirements in Canterbury-Bankstown can differ from the statewide summary and change over time; always confirm with City of Canterbury-Bankstown before starting work. Last reviewed: July 2026.
Talk to a town planner in Canterbury-Bankstown
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.
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