You are required by law to have aregisteredapplication prior to commencement of works.
If you submit a Building Notice application you must wait 48 hours before commencement.
If you submit a Full Plans application and it is registered, you are legally entitled to commence the works, however all works undertaken prior to Determination of the application are entirely at your own risk.
You should always notify the Building Control Service for site inspections at all appropriate times.
Works to an existing dwelling that are solely for the benefit of a disabled person are generally fee exempt. You are advised to contact the building control service to verify that your scheme is fee exempt