Adding a conservatory to your house is considered to be permitted development, not needing an application for planning permission, subject to the limits and conditions listed below.
No more than half the area of land around the "original house"
would be covered by additions or other
buildings.
No extension forward of the principal elevation or side elevation
fronting ahighway.
No
extension to be higher than the highest part of the roof.
Single storey rear conservatory must not extend beyond the rear
wall of theoriginal house by more than three
metres if an attached house or by four metres if a detached house.
Maximum height of a single-storey rear
extension of four metres.
Extensions of more than one storey must not extend beyond the
rear wall ofthe original house by more than
three metres or be within seven metres of any boundary opposite the rear wall.
Maximum eaves height of an extension within two
metres of the boundary of three metres.
Maximum eaves and ridge height of extension no
higher than existing house.
Side extensions to be single storey with maximum height of four
metres andwidth no more than half that of the
original house.
Roof
pitch of extensions higher than one storey to match existing house.
No
verandas, balconies or raised platforms.
On designated land no permitted development for rear extensions of
morethan one storey; no cladding of the
exterior; no side extensions
** These are for guidance Check with your local authority for up to date rules
Keith .A. Petticrew
institute of Kitchen Bedroom & Bathroom Installers Accreditation
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Member of The Guild of Master Craftsmen since 2003