The planning permission 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 following:
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.
For further information call us in the office on: 01282 451428