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When you do not need Building Regulations Approval from Building Control

Find out what types of buildings and which types of building works are exempt.

Work that does not need approval

Buildings that do not require approval

  • detached buildings, with floor areas that do not exceed 15m2 and contain no sleeping accommodation
  • detached single storey buildings, including garages, that are:
    • less than 30m2 floor area
    • at least one metre from any boundary unless constructed of non-combustible materials
  • an extension to a building at ground level consisting of:
    • a porch of less than 30m2 floor area and separated from the house by an external type door
    • a carport open on at least two sides that is less that 30m2 floor area
    • a covered yard or way to the house less than 30m2 floor area
    • a conservatory that is:
      • of substantially clear/translucent material (You must use safety glass in critical locations)
      • separated from the house by external quality door(s)
      • less that 30m2 floor area

Find out more about exemptions from building regulations on the Planning Portal (opens in a new window)

If you are still unsure

If you are not certain that your works are exempt you can submit a proposal form to Building Control for advice. This exemption only count for Building Regulations, you will need a separate exemption from Planning too. Find out more about the difference between Planning and Building Control.

Apply for advice online

Request a confirmation that your works are exempt

Submit a paper request

Download a printable version of the Building Control confirmation of exemption form (pdf, 152kb) (opens in a new window) once completed you can submit your form to the relevant authority.

If you are not exempt

If you need approval you can either:

If you hire a competent person to do the work on your behalf, you do not need to apply for approval yourself.

Penalties and problems

Find out what happens if you do not get approval (opens in a new window).

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