Short answer: being in a conservation area does not automatically stop you building a porch, but an Article 4 direction can remove your permitted development rights, meaning you need planning permission even for a small porch.
Conservation area or Article 4?
A conservation area protects the character of a street. An Article 4 direction is an extra step a council can take to remove specific permitted development rights, often for front elevations. Many streets in Richmond, Chiswick and Twickenham fall into one or both.
How to check your home
Your council's website lists its conservation areas and any Article 4 directions. Listed buildings always need listed building consent for external changes. We check this for you as part of the free site visit.
What gets approved
Councils favour porches that respect the house: matching brick, natural slate or clay tiles, painted timber joinery and modest proportions. Plastic finishes and oversized glazed boxes are harder to get through on period streets.
If you need an application
A householder planning application usually needs drawings, a site plan and sometimes a short heritage statement. Read our planning permission guide for the general rules.
Next step
Book a free estimate and we will tell you on the day whether your porch needs an application and how to design it so it suits the street.
Local porch guides