Planning
Do you need planning permission for a pergola or gazebo?
A freestanding pergola or gazebo is treated as an outbuilding: permitted development within the height limits (2.5 metres within 2 metres of a boundary), unless it is on designated land or attached to the house.
In short
A freestanding pergola, gazebo or veranda is normally treated as an outbuilding under permitted development, so it needs no planning permission if it is single storey and meets the outbuilding height limits: 2.5 metres if within 2 metres of a boundary, otherwise up to 3 metres for a flat roof or 4 metres for a pitched one. A structure attached to the house, or one on designated land or a listed property, is more likely to need permission. A raised platform above 0.3 metres is not permitted development.
The thresholds
Where the line sits
A pergola or gazebo standing on its own in the garden follows the same rules as any other outbuilding, so the height limits are what matter: 2.5 metres if it is close to a boundary, more if it sits further in. Most garden structures are well under these limits. The position chan
| Situation | Planning permission |
|---|---|
| Freestanding, within the limits | Not normally needed |
| Within 2m of a boundary and over 2.5m | Needed |
| Attached to the house | Often needed, counts as an extension |
| On designated land or a listed property | Check first |
Source: Gardenscape. Figures as of 2026-06-01.
Yes, no, or it depends
Scenarios in plain language
Yes. Once a structure is fixed to the house it can count as an extension rather than an outbuilding, which changes the rules. We will tell you which applies.
The roof material does not change the planning position; the height and position do. A solid or glazed roof within the limits is still permitted development.
In the Cotswolds National Landscape or a conservation area, outbuilding rights are restricted, so a structure that is permitted elsewhere may need an application. Check first.
The local layer
Designated land and Article 4
A pergola or gazebo standing on its own in the garden follows the same rules as any other outbuilding, so the height limits are what matter: 2.5 metres if it is close to a boundary, more if it sits further in. Most garden structures are well under these limits. The position changes once a structure is fixed to the house, because it can then count as an extension rather than an outbuilding, and the rules are different. We will tell you which set applies to your design. The roof makes no difference to the planning position. A solid, louvred or glazed roof within the height limits is still perm
A note
General guidance, not advice. Rules vary by site, and Article 4 directions or conditions can change what applies. Check with your local authority and the Planning Portal.
- Source: Planning Portal: outbuildings
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