Building regulations approval
When you need approval
You must check if you need approval before you construct or change buildings in certain ways.
You do not need to get approval yourself if you use someone registered with a competent person scheme.
Find out about the rules in Scotland and Northern Ireland.
Building regulations approval is different from planning permission. You might need both.
Work covered by building regulations
The Building Regulations 2010 cover the construction and extension of buildings.
You might also need building regulations approval for many alteration projects, including if you plan to:
- replace fuse boxes and connected electrics
- install a bathroom that will involve plumbing
- change electrics near a bath or shower
- put in a fixed air-conditioning system
- replace windows and doors
- replace roof coverings on pitched and flat roofs
- install or replace a heating system
- add extra radiators to a heating system
You could need approval, or to follow special rules, for works not listed here – so always research your particular project.
Check with a building control body if you cannot decide if you need approval.
You do not need advance approval for emergency repairs to your boiler or heating system, but there are rules you must follow.
From 1 October 2026, applications for building control approval and initial notices for certain residential buildings may be subject to a tax called the ‘Building Safety Levy’.
Getting approval for higher-risk buildings
Higher-risk buildings are at least 7 storeys or 18 metres high and any of the following:
- 2 residential units
- a hospital
- a care home
You need building control approval from the Building Safety Regulator (BSR) before starting:
- to build a new higher-risk building
- building work to an existing building that makes it a higher-risk building
- building work to an existing building that stops it being a higher-risk building
- building work on an existing higher-risk building, except in certain cases
For work on existing higher-risk buildings, you do need BSR approval if the building:
- is exempt from building regulations
- is done under a competent person scheme
- is an emergency repair
Find out more about getting BSR approval, including exemptions, in the building control approval for higher-risk buildings guidance.
Getting approval for work that is not higher risk
You may need approval from a building control body. You can either choose your local authority’s building control department or a private registered building control approver.
Penalties and problems
The person doing the work could be prosecuted and fined if they do not comply with building regulations.
The relevant building control body - your local authority or the BSR - could make you pay to fix faulty work.
Without approval you will not have the certificates of compliance you may need when you want to sell your home.