You Can Start Within 48 Hours of Notifying Building Control
Once you have dealt with planning, if you are in a hurry to start extending, you can commence work immediately after giving the local authority building control department 48 hours’ notice. You are required to submit a ‘Building Notice’ and the required fee.
Generally the Building Notice method is more suitable for simple works where detailed drawings are not required, but it can be used for any project, with the exception of work to listed buildings.
For most extensions it is best to make a Full Plans application. This involves submitting detailed drawings, specifications, calculations and a location plan for inspection by the local authority, together with the application forms and appropriate fee.
Building control has to respond within five weeks unless you agree to give them an extension to two months. A Full Plans submission allows any irregularities to be resolved before work commences.
With a Building Notice, the building control officers can ask for proof of compliance at any stage, so it is essential to make sure they make all necessary inspections and provide any structural calculations when requested. When the project is completed and inspected by the local authority, a completion certificate will be issued which will prove useful if the property is ever to be sold on. Application fees are set individually by each local authority.