Building Control - Exemptions
The following provides a brief guide to building work that is exempt from control under the Building Regulations. If you are at all unsure whether your proposal satisfies the criteria contained here, then please contact the Building Control office.
- Class I - Buildings controlled under other legislation
- Class II - Buildings not frequented by people
- Class III - Greenhouses and agricultural buildings
- Class IV - Temporary Buildings
- Class V - Ancillary buildings
- Class VI - Small detached buildings
- Class VII - Extensions
Class I - Buildings controlled under other legislation
- Any building subject to control under the Explosives Acts 1875 and 1923
- Any building (other than a building containing a dwelling or a building used for office or canteen accommodation ) constructed on a site in respect of which a licence under the Nuclear Installations Act 1965 is for the time being in force
- A building included in the schedule of monuments maintained under section 1 of the Ancient Monuments and Archeological Areas Act 1979
Class II - Buildings not frequented by people
- A detached building:
a. into which people do not normally go; or
b. into which people go only intermittently and even then only for the purpose of inspection or maintaining fixed plant or machinery, unless any point of such a building is less than one and a half times it's height from:
i. any point of a building into which people can or do normally go; or
ii. the nearest point of the boundary of the curtilage of that building, whichever is the nearer.
Class III - Greenhouses and agricultural buildings
A greenhouse:
- A building used, for agriculture, or a building principally for the keeping of animals, provided in each case that:
a. no part of the building is used as a dwelling;
b. no point of the building is less than one and a half times it's height from any point of a building which contains sleeping accommodation; and
c. the building is provided with a fire exit which is not more than 30 metres from any point in the building.
The descriptions above do not include a greenhouse or a building used for agriculture if the principal purpose for which they are used is retailing, packing or exhibiting. Agriculture in this sense will include horticulture, fruit growing, the growing of plants for seed and fish farming.
Class IV - Temporary Buildings
A building which is not intended to remain where it is erected for more than 28 days.
- A building on a site, being a building which is intended to be used only in connection with disposal of buildings or building plots on that site
- A building on the site of construction or civil engineering works, which is intended to be used only during the course of those works and contains no sleeping accommodation
- A building, other than a building containing a dwelling or used as an office or showroom, erected for use on the site of and in connection with a mine or quarry
Class VI - Small detached buildings
- A detached single storey building, having a floor area which does not exceed 30m2, which contains no sleeping accommodation and is a building -
a. no point of which is less than one metre from the boundary of its curtilage; or
b. which is constructed substantially of non-combustible material - A detached building designed and intended to shelter people from the effects of nuclear chemical or conventional weapons, and not used for any other purpose, if -
a. its floor area does not exceed 30m2 ; and
b. the excavation for the building is no closer to any exposed part of another building or structure than a distance equal to the depth of the excavation plus one metre. - A detached building, having a floor area which does not exceed 15m2, whish contains no sleeping accommodation.
The extension of a building by the addition at ground level of -
a. a conservatory, porch, covered yard or covered way; or
b. a carport open on at least two sides;
where the floor area of that extension does not exceed 30m2, provided that in the case of a conservatory or porch which is wholly or partly glazed, the glazing satisfies the requirement of Part N of schedule 1.
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