The planning rules for porches are applicable to any external door to the dwellinghouse.
Adding a porch to any external door of your house is considered to be permitted development, not requiring an application for planning permission, provided:
- the ground floor area (measured externally) would not exceed three square metres
- no part would be more than three metres above ground level (height needs to be measured in the same way as for a house extension)
- no part of the porch would be within two metres of any boundary of the dwellinghouse and the highway.
Please note: the permitted development allowances described here apply to houses not flats, maisonettes or other buildings. View guidance on flats and maisonettes here.
Disclaimer - Wales
This is an introductory guide and is not a definitive source of legal information. This guidance relates to the planning regime for Wales. Policy in England may differ. If in doubt contact your Local Planning Authority.