Is Planning Permission Needed?

As mentioned previously not all property developments require planning permission. However, it is important that you check with the local council planning department whether your planned conversion requires permission, as it could be very costly if you carry out some building works which later have to be altered or even demolished because you failed to obtain the correct planning permissions. It is best to take the advice of an architect or planner.

The rules for when planning permission is required are complicated and therefore, a complete list of the specifications is not covered within this section. However, the following list can be used as a general guide. Full details can be found on the Communities and Local government website at http://www.communities.gov.uk/index.asp?id=1503250

Conversion to a House

Planning Permission is required if any of the following applies:

• The alteration of a roof  to provide additional accommodation may require planning permission.  The need for planning permission is dependent on how the conversion is carried out. Government legislation has provided exemtpions to the need for planning permission and these are referred to as "permitted development".  Generally these would allow the conversion of the loft space and the incorporation of velux type windows to provide natural light.  The incorporation of any other form of window, involving additions to the roof fronting a road is likely to require planning permission. 

• If more than half the original amount of land surrounding the house is covered by additional buildings

• If the conversion is higher than the highest point of the original house

• If the volume of the house is increased by more than 15% (10% for those properties within a conservation area)

• If the volume of a house is increased by more than 115 cubic metres

This is a brief list of the regulations with regards when planning permission is required. For full details contact either your local council planning department, seek advice from an architect or planner, or for further details look at the Communities and Local government website at http://www.communities.gov.uk/index.asp?id=1503250

Extensions to Flats and Maisonettes

Permission is required if you wish to build an extension, an outbuilding such as a garage, shed or greenhouse, as well as for any other work which would materially alter the appearance of the building. You will also need to apply for planning permission to create a hard surface such as a patio.

Demolition of Buildings

Even though you may not need planning permission to demolish an existing building, you will almost certainly require permission to build on this newly available land.

Always Seek Professional Advice

For further regulations affecting listed buildings or conservation areas please see the separate section "Listed Buildings".

Before proceeding with any building on your property it is essential that you take time to consult either your local council's planning department or a local architect/planner. Whereas the guidelines above apply to most situations, there may be specific local regulations that apply to your particular area of the country.