Sutton Garden are happy to advise and help you negotiate through any planning issues that may arise, below are the basic rules and guidelines:
Rules governing outbuildings apply to sheds, greenhouses and garages as well as other ancillary garden buildings such as swimming pools, ponds, sauna cabins, kennels, enclosures (including tennis courts) and many other kinds of structure for a purpose incidental to the enjoyment of the dwelling house.
Outbuildings are considered to be permitted development, not needing planning permission, subject to the following limits and conditions:
*Designated land includes national parks and the Broads, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.*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.
Please note: the permitted development allowances described here apply to houses not flats, maisonettes or other buildings.