Planning Permission - a guide
Under new regulations that came into effect from 1 October 2008 adding a Conservatory or Outbuilding to your home (excluding flats and maisonettes) is considered to be permitted development, not needing an application for planning permission, subject to the following limits and conditions:
Conservatories and Outbuildings
No more than half the area of land around the "original house" would be covered by additions or other buildings.
The term "original house" means the house as it was first built or as it stood on 1 July 1948 (if it was built before that date). Although you may not have built an extension to the house, a previous owner may have done so.
Conservatories (extensions)
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No conservatory forward of the principal elevation or side elevation fronting a highway
Maximum depth of a rear conservatory of
3m for an attached house and
4m for a detached house.
Maximum height of a conservatory of 4m.
Maximum eaves height of a conservatory within 2m of the boundary of 3m.
Side conservatories maximum height of 4m and width no more than half that of the original house
No verandas, balconies or raised platforms
On designated land* no permitted development for rear conservatories of more than one storey; no cladding of the exterior; no side conservatories
Outbuildings (garages, sheds, summerhouses etc)
No outbuilding forward of the principal elevation fronting a highway
Outbuildings to be single storey with a maximum eaves height of 2.5m and a maximum overall height of
4m with a dual pitched roof
3m for any other roof
Maximum height of 2.5m within 2m of a boundary
No verandas, balconies or raised platforms
In National Parks, the Broads, Areas of Outstanding Natural Beauty and World Heritage Sites the maximum area to be covered by buildings, enclosures, containers and pools more than 20 metres from house to be limited to 10 square metres
On designated land* buildings, enclosures, containers and pools at the side of properties will require planning permission
Within the curtilage of listed buildings any outbuilding will require planning permission.
*Designated land includes National Parks and the Broads, Areas of Outstanding Natural Beauty, Conservation Areas and World Heritage Sites.
Where work is proposed to a listed building, listed building consent may be required
We would recommend that you check these details with your local planning department and/or visit the
Government Planning Portal
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