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Will I need planning permission?

All timber garden buildings are subject to planning permission rules, however most of our buildings will not actually require planning permission.

Whether you need planning permission or not will depend on the size of your building, where in your garden it is to be situated and whereabouts you live.


  • The building is less than 2 metres from the property boundary with a maximum external height of no more than 2.5 metres. Most of our buildings can be made within these sizes.

  • The building is more than 2 metres from the property boundary, with a maximum external eaves height of 2.5 metres and a maximum overall external height of 4 metres for Apex roof buildings and a maximum overall external height of 3 metres for Pent roof buildings.

  • No more than 50% of the area of land around the original house* is taken up by garden buildings or other buildings.

  • The building is not positioned forward of a wall that forms the principle elevation of the house. 

*original house means the house as it was first built or as it stood on 1st July 1948, if it was built before this date.


If you live on designated land such as a National Park, an area of outstanding beauty or a Conservation Area then you will need planning permission.

If you live in a listed building then you will also need planning permission. If you are in any doubt then please contact your local authority.

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