Decks & Pergolas rules in Victoria (2026)
A low deck usually needs no building permit: a freestanding deck no more than 10 m² and no higher than 800 mm above the ground is exempt. Any deck attached to the house, or more than 800 mm above ground, needs a building permit. A planning permit is generally only needed if a planning overlay (heritage, etc.) applies.
Building permit hinges on height and whether it is attached
A low deck usually needs no building permit: a freestanding deck no more than 10 m² and no higher than 800 mm above the ground is exempt. Any deck attached to the house, or more than 800 mm above ground, needs a building permit. A planning permit is generally only needed if a planning overlay (heritage, etc.) applies.
Key rules at a glance
| Building permit - freestanding deck | Not required if 10 m² or less and 800 mm or less above ground |
| Building permit - attached deck | Required for any deck attached to the house, regardless of size or height |
| Building permit - height trigger | Required once the deck is more than 800 mm above ground |
| Pergola (building permit) | Not required if unroofed, 20 m² or less, 3.6 m or less high, sited near the front wall and not over an easement |
| Verandah (roofed) | A solid roof makes it a verandah, so a building permit is required |
| Planning permit | Generally only needed if a heritage, significant-landscape or character overlay applies |
Conditions & eligibility
- Measure height from natural ground to the top of the finished deck surface
- The exemption is lost if the deck is attached to or forms part of the dwelling
- The pergola exemption requires it to stay unroofed (open framework)
- Bushfire-prone (BMO) land can remove building-permit exemptions - check first
- A planning overlay (heritage etc.) can require a planning permit even for a low deck
- All work must still comply with the National Construction Code and building standards
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 Victoria
Two separate approvals. A building permit (from a registered building surveyor) is the usual trigger, driven by height and whether the deck is attached. A planning permit (from council) is generally not required for a deck unless the land carries a planning overlay such as heritage, significant landscape or neighbourhood character.
Overlays vary lot by lot; check the property's planning report before assuming no planning permit is needed.
Decks & Pergolas rules by council in Victoria
Local councils apply the Victoria framework and can add their own controls. Pick your council:
Frequently asked questions
Do I need a building permit for a deck in Victoria?
Not for a freestanding deck that is 10 m² or less and no higher than 800 mm above the ground. Any deck attached to the house, or more than 800 mm high, needs a building permit from a registered building surveyor.
Do I need a planning permit for a deck in Victoria?
Usually not. A planning permit is generally only required if your land has a planning overlay such as heritage, significant landscape or neighbourhood character, so check the property's planning report.
Do I need a permit for a pergola in Victoria?
An unroofed pergola of 20 m² or less and no higher than 3.6 m, sited near the front wall and not over an easement, is generally exempt from a building permit. Adding a solid roof makes it a verandah, which needs a permit.
Sources
- Landscaping (decks and pergolas) - Victorian Building Authority ↗
- When is a building permit required? - Victorian Building Authority ↗
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 Victorian Building Authority before starting work. Last reviewed: July 2026.
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