The validation process
The Building Safety Levy (BSL) will come into effect on 1 October 2026. It is a tax on new dwellings and new bedspaces in purpose‑built student accommodation (PBSA).
Developers must pay the levy on certain building control applications or notices before completion or occupation of the building. The Council will collect the levy.
The Building Safety Levy (England) Regulations 2025 sets out how the levy will operate.
After the application is received:
- we create a file and allocate an application number - this number is your planning application reference and should be quoted whenever you contact us about the application
- the application is allocated to a planning officer
- once allocated, the planning officer undertakes a pre-validation check to make sure that the application meets our local requirements list
If the application is valid
- the validation team process the application and send you an acknowledgement letter with a site notice and guidance notes
- the validation team create a list of neighbours to consult (if appropriate)
- letters are sent to neighbours
- a number of statutory external and internal consultees are contacted for their comments on the application, for example, Thames Water, conservation officers, Environment Agency
- the application is scanned and becomes available on the website
- it's then given to the planning officer for assessment and to make a recommendation
If the application is invalid
- you will receive an email or letter stating the reasons it is invalid
- the application is then suspended until the requested information is received
- the time limit for suspending the application is 21 days - after this period, the application is withdrawn and this is confirmed by either letter or email
- once an application has been withdrawn, you'll need to submit a new application
Withdrawn applications
If an application is withdrawn prior to validation, an administration fee of £134.54 (£161.45 including VAT) for major applications and £44.85 (£53.83 including VAT) for non-major applications will be levied. This is to cover administrative costs. Validated applications cannot be refunded if withdrawn.
For guidance on time periods for determining applications, visit the government's Planning Practice Guidance website.