Not all development requires planning permission, some developments are regarded as 'permitted development' and are not subject to planning controls.
Some very minor developments can be undertaken without the need for planning permission and this is often referred to as 'permitted development'. However, for most new building work Building Regulations approval will need to be obtained.
It is important to note that your permitted development allowance is limited on Listed Buildings, properties in Conservation Areas and in some cases as a result of restrictions placed in the permission for the property to be built. You will need to check if your property is Listed or in a Conservation Area - this can be done by contacting Customer Services on 01784 451499 or via My Spelthorne. The planning department can only confirm in writing if your proposed development does not need planning permission and is permitted by issuing a Lawful Development Certificate.
The Planning Portal gives advice on whether or not planning permission is needed. The Portal's interactive house guide for terraced or semi-detached houses provides visual guidance and information on permitted development (extensions, conservatories, loft conversions, outbuildings and porches). Please see the following guidance for further information:
Any definitive view on whether a planning proposal is acceptable will need to be the subject of a planning enquiry and should be submitted on the 'planning enquiry form' with plans and the relevant fee.
If you are considering making an alteration to your home please see our web pages on Pre-application advice and the Planning Duty Rota.