Submit a building notice

A building notice application is used for small extensions, loft conversion, new roofs, windows replacements, attached garages, drainage and other small works. You do not need approval prior to commencing but we may request a set of drawings or calculations.

A building notice is valid for three years starting from the day the application was submitted to us. It will automatically lapse if the works haven’t started. Once a building notice is submitted work can commence within 48 hours. 

When to submit a notice

You need to submit a building notice for works including:

• any small domestic work

• drainage

• electrical works

• garage or carport 

• loft conversion

• new roof

• replacement windows

This list is not exhaustive. Contact us if you're not sure if you should submit a notice.

Cost

You need to pay a fee to us when you submit your building notice application.

In most cases, small domestic projects such as loft conversions, extensions, garages, and carports fall under schedule 1 of the fees chart. 

If the floor area of the work exceeds 60m², the application will be charged according to schedule 2, which corresponds to the cost of the works. 

• See more information on our building control fees.

Before you start

You will need to:

• log in or create an account on our building control portal to submit a building notice application. This is different from a Lewisham website account
• click on ‘submit building application’ and follow the on-screen instructions

Payment

• you will need to pay online using a credit or debit card
• if you’re unable to make a payment online, you’ll need to complete a paper application and email the completed form to building.control@lewisham.gov.uk

What happens next

• we will send you an email confirmation with your reference number, after we receive your application
• you’ll be given the name and contact details of your site inspector while we process your application