Does a garden structure need

planning permission?

“Will I need planning permission for my garden room or gazebo?” we hear you ask.


In most cases, you will not need to seek planning permission for your garden structure. However, for builds with particular features planning permission is necessary. Here are some guidelines to consider when researching your garden room,

garden office, gazebo or veranda:

Height of Garden Room or Gazebo?

  • You will not need planning permission if the structure is within 2 metres of the boundary and no more than 2.5 metres high.

  • If the structure is more than 2 metres away from the boundary, then it must be single-story with a maximum eaves height of 2.5 metres, or an overall height of 4 metres if it has a dual-pitched roof.

  • If the structure has a balcony, veranda or raised platform that is more than 300mm high, you will need planning permission.

Location of the Structure?

  • The garden room or gazebo must not take up more than 50% of the garden. If it will, planning permission is required.

  • If you live in a listed building or in a conservation area, you will need planning permission.

  • If you live in an area of outstanding natural beauty or a national park, you can build without planning permission if the structure is 10 metres squared or less, and situated more than 20 metres from the main house.

  • Residents in flats (and maisonettes) will need to apply for planning permission.

  • Wherever you choose for the structure to sit, it cannot be closer to a main or public road then the main house.

How you will use the Structure?

  • If the garden building is being used as a granny annexe or accommodation, you will need to ask for planning permission.

  • The garden room cannot have an antenna.

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Brighton Office: 01273 734668

Horsham Workshop: 01403 273550

Richard (Operations Director): 07769973937

Workshop Address:

Hathaways, Winterpit Lane,

Mannings Heath,


West Sussex,

RH13 6LZ

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