Do not forget, even though the works are exempt under the Building Regulations, you may still need planning permission, please ask if you have any doubts.
Fixtures and fittings
The provisions of controlled fittings such as boilers, fires, toilets, baths, washbasins etc. and the installation of fixed electrical wiring in a dwelling or elsewhere associated with a dwelling are not exempt. Similarly, alterations to those fixtures and fittings, or any part of a drainage system, flue pipe or chimney will also require approval from the council. The only exception to this requirement is for gas fired appliances installed by a person approved in accordance with Regulation 3 of the Gas Safety (Installation and Use) Regulations 194(a). The Regulations do not relate to electrical appliances.
Even though the building you wish to construct might be exempt from the regulations, controlled services such an electrical installation must comply with the regulations and may require separate approval.
The following extensions are exempt if at ground level and have floor areas not exceeding 30 sq m and do not contain a controlled service or fitting (such as heating or plumbing).
This should be completely glazed except for the existing wall or walls of the building to which it is attached.
A conservatory must retain a wall between it and the house to save energy. The glazing must satisfy Regulation N1, Glazing - protection against impact.
A porch must not be used or intended for use as a room. It must also have safety glass.
A covered yard or covered way
You may provide weather protection but not use the area as a room or for storage etc.
Wholly detached greenhouses are exempt irrespective of size. A greenhouse must be fully glazed and not used for exhibiting, retailing or packing etc.
Sheds and garages — wholly detached
A shed or garage must not contain any sleeping accommodation and it must have a floor area (measured inside the walls) of 30 sq m or less.
Also, to be exempt:
- every part of it must be at least 1 metre from its site boundary; or
- it must be single storey and constructed mainly of non-combustible materials. In practice this means that any shed or garage closer than 1 metre to its boundary must be of masonry and/or steel construction, and with a concrete tiled roof or similar to be exempt.
Structural alterations will require consent and non-structural work may require consent. Advice can be given on this matter by telephoning 01942 489160.