Technical Booklet R Access to and Use of Buildings·Page 7·90(1) and 90(2)
Application of Part R to buildings
Part R applies to any building or part of a building, with specific exemptions for garages, outbuildings associated with dwellings, parts used solely for inspection or maintenance, and certain alterations to existing dwellings.
Subject to paragraphs (2), (3) and (4) this Part shall apply to any building or part of a building.
This Part shall not apply to—
(a) any garage or outbuilding associated with a dwelling;
(b) any part of a building which is used solely to enable the building or any service or fitting in the building to be inspected, maintained or repaired; and
(c) the alteration or extension of an existing dwelling to which this Part did not apply when the dwelling was erected other than where the alteration or extension affects a facility suitable for use by people with an impairment of mobility, hearing or sight, in the existing building.
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