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Class C ANY OTHER ALTERATION TO THE ROOF
OF A DWELLINGHOUSE
Permitted development
C. Any other
alteration to the roof of a dwellinghouse.
Development not permitted
C.1 Development
is not permitted by Class C if—
(a) the
alteration would protrude more than 150 millimetres beyond the plane of the
slope of the original roof when measured from the perpendicular with the
external surface of the original roof;
(b) it would result in the highest part of the
alteration being higher than the highest part of the original roof; or
(c) it would consist of or include—
(i) the installation, alteration or replacement of a chimney, flue or soil and
vent pipe, or
(ii) the installation, alteration or
replacement of solar photovoltaics or solar thermal equipment.
Conditions
C.2 Development
is permitted by Class C subject to the condition that any window located on a
roof slope forming a side elevation of the dwellinghouse shall be—
(a) obscure-glazed; and
(b) non-opening
unless the parts of the window which can be opened are more than 1.7 metres
above the floor of the room in which the window is installed.