An application for building control must be made before any building work commences.
For works costing more than £500,000, contact our support team on 020 7974 2363 or our duty surveyor on Mondays, Wednesdays or Fridays between 9am and 1pm on 020 7974 2365.
Alternatively, you can request a quote online:
Which application should I submit?
Further advice on which application form to select, can be found on the Planning Portal.