You are all fired up and ready to build a beautiful conservatory and then some interfering neighbour tells you that you will almost certainly need planning permission for a conservatory. This fortunately is not necessarily true since under new regulations that came into being from 1 October 2008 you probably won’t now need planning permission to add a conservatory to your home.

This is because a conservatory is considered to be a permitted development, not needing an application for planning permission; so long as it won’t be erected on designated land such as national parks, conservation areas world heritage sites and areas of outstanding natural beauty and is subject to the list of conditions shown below.

No more than half the area of land around the original house (this means when it was first built or as it stood on 1 July 1948 if it was built before that date) would be covered by additions or other buildings.

No extension to be higher than the highest part of the roof.

No extension forward of the principal elevation or side elevation fronting a highway.

Maximum depth of a single-storey rear extension of three metres for an attached house and four metres for a detached house.

 Maximum height of a single-storey rear extension of four metres.

Maximum depth of a rear extension of more than one storey of three metres including ground floor.

Maximum eaves height of an extension within two metres of the boundary of three metres.

Maximum eaves and ridge height of extension no higher than existing house.

Side extensions to be single storey with maximum height of four metres and width no more than half that of the original house.

Roof pitch of extensions higher than one storey to match existing house.
No verandas, balconies or raised platforms.

No permitted development for rear extensions of more than one storey; no cladding of the exterior; no side extensions.

Most homes seem to fit well within this new law so you can start to plan your conservatory with enthusiasm and dreams of a green oasis under cover. Do remember though that you may need to apply for building regulations approval unless you’re the internal floor area is going to be less than thirty square metres.