When is building regulation approval required?

Work that requires building regulation approval

You may need building regulation approval to check the work you're doing reaches certain safety and energy efficiency standards.

Before you apply for building regulation approval, please check if the work you're doing requires approval from us.

These are the most common proposals that require building regulations approval:

  • Erection of a building or new dwelling.
  • Extension or alterations to domestic buildings.
  • Loft conversions.
  • Garage conversions.
  • Installation and fitting of new waste appliances.
  • Installation and fitting of new drainage.
  • Installation and fitting of heating appliances - unless the work is carried out by a member of a competent person scheme.
  • Installation of electrical works - unless the work is carried out by a member of a competent person scheme.
  • Installation of new or replacement doors and windows - unless the work is carried out by a member of a competent person scheme.
  • Replacing or repairing more than 25 per cent of a roof covering.
  • Alterations to the structure of a building. If this includes removing chimney breasts, please contact us for more advice before you start.
  • Work affecting means of escape in case of fire - this may include replacement windows in residential buildings.
  • Changing the use of a building.
  • Building work does not cover repair items. However, certain operations, which you may consider a repair, will require building regulation approval. For example: underpinning, replacing a defective roof covering with a heavier or lighter tile, or slate.

If you're not sure whether you need building regulation approval, or would like any advice, we're here to help. You can get in touch using the contact details on this page.

Apply for building regulation approval