Guidance notes are available for the following classes of development:
Part 1, Classes A and D - The enlargement, improvement or other alteration of a dwellinghouse and construction of porches (does not include a roof alteration, veranda, balcony or raised platform higher than 300mm, a microwave antenna or chimney, flue or soil and vent pipe and, in Conservation Area or Area of Outstanding Natural Beauty, the cladding of any part of the exterior of the dwellinghouse).
Part 1, Classes B and C - Addition or alteration of roof of dwellinghouse.
Part 1, Class E - Any building, enclosure, swimming or other pool required for a purpose incidental to the enjoyment of the dwellinghouse or a container used for the storage of domestic heating oil or petroleum gas (does not include a veranda, balcony or raised platform higher than 300mm, or a microwave antenna).
Part 1, Class F - The provision, replacement (in whole or part) of a hard surface within the curtilage of a dwellinghouse).
Part 1 - Class G - The installation, alteration or replacement of a chimney, flue or soil and vent pipe on a dwellinghouse.
Part 1 - Class H - The installation, alteration or replacement of a microwave antenna on a dwellinghouse or within its curtilage.
Guidance on the permeable surfacing of front gardens - The paving of front gardens with hardstanding.
Neighbour Consultation Scheme (Permitted Development)
A 3m-6m rear extension on an attached house or a 4m-8m rear extension on a detached house is allowed, if the extension is single storey and does not exceed 4m in height.
Upward extensions of existing dwellinghouse (Permitted Development with effect from 31 August 2020)
An upward extension (additional storeys) to your house is allowed consisting of the construction of:
- up to two additional storeys where the existing dwellinghouse consists of two or more storeys; or
- one additional storey, where the existing dwellinghouse consists of one storey, immediately above the topmost storey of any dwellinghouse, together with any engineering operations reasonably necessary for the purpose of that construction.
The fee for this is £96.