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Paragraph A.1 Development not permitted

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

Development is not permitted by Class A if—

(a)

the cubic content of the resulting building would exceed the cubic content of the original dwellinghouse—

(i)

in the case of a terrace house or in the case of a dwellinghouse on article 1(5) land, 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;

(iii)

in any case, by more than 115 cubic metres;

(b)

the height of the resulting building would exceed the height of the highest part of the roof of the original dwellinghouse;

(c)

any part of the resulting building would be nearer to any highway which bounds its curtilage than—

(i)

the part of the original dwellinghouse nearest to that highway; or

(ii)

20 metres,

whichever is nearest to the highway;

(d)

any part of the resulting building which is within 2 metres of the boundary of the curtilage of the dwellinghouse would exceed 4 metres in height;

(e)

the total area of ground covered by buildings within the curtilage (other than the original dwellinghouse) would exceed 50% of the total area of the curtilage (excluding the ground area of the original dwellinghouse);

(f)

it would consist of or include the installation, alteration or replacement of a satellite antenna;

(g)

it would consist of or include the erection of a building within the curtilage of a listed building; or

(h)

it would consist of or include an alteration to any part of the roof.