Exempt buildings and work
9.—(1) Subject to paragraphs (2) and (3) and regulation 21(1), these Regulations do not apply to—
(a)the erection of any building or extension of a kind described in Schedule 2; or
(b)the carrying out of any work to or in connection with such a building or extension, if after the carrying out of that work it is still a building or extension of a kind described in that Schedule.
(2) The requirements of paragraphs G1 and G3(2) and (3) of Schedule 1 apply—
(a)to any greenhouse which receives a cold or hot water supply from a source shared with or located inside a dwelling; and
(b)to—
(i)any small detached building falling within class 6 in Schedule 2; and
(ii)any extension of a building falling within class 7 in Schedule 2,
which in either case receives a cold or hot water supply from a source shared with or located inside any building other than a building or extension of a kind described in Schedule 2.
(3) The requirements of Part P of Schedule 1 apply to—
(a)any greenhouse;
(b)any small detached building falling within class 6 in Schedule 2; and
(c)any extension of a building falling within class 7 in Schedule 2,
which in any case receives its electricity from a source shared with or located inside a dwelling.