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The Town and Country Planning (General Permitted Development) Order 1995
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Changes over time for: Cross Heading: Class B
Alternative versions:
- 03/06/1995- Amendment
- 09/07/1999
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Point in time view as at 09/07/1999.
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Class BE+W
Permitted developmentE+W
B. The enlargement of a dwellinghouse consisting of an addition or alteration to its roof.
Development not permittedE+W
B.1 Development is not permitted by Class B if—
(a)any part of the dwellinghouse would, as a result of the works, exceed the height of the highest part of the existing roof;
(b)any part of the dwellinghouse would, as a result of the works, extend beyond the plane of any existing roof slope which fronts any highway;
(c)it would increase the cubic content of the dwellinghouse by more than 40 cubic metres, in the case of a terrace house, or 50 cubic metres in any other case;
(d)the cubic content of the resulting building would exceed the cubic content of the original dwellinghouse—
(i)in the case of a terrace house by more than 50 cubic metres or 10%, whichever is the greater,
(ii)in any other case, by more than 70 cubic metres or 15%, whichever is the greater, or
(iii)in any case, by more than 115 cubic metres; or
(e)the dwellinghouse is on article 1(5) land.
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