Homeowner guides
Plain-English answers to the questions homeowners ask us most.
Do I need planning permission for my extension?
How permitted development works for rear and side extensions in England, when you need planning permission, and why a Lawful Development Certificate is worth having.
Read the guideWhat is in a Building Regulations technical pack?
What Building Regulations cover for an extension or loft conversion, the Building Notice route, and the technical drawings your builder and Building Control need.
Read the guideDo I need structural calculations for my extension?
When an extension or loft conversion needs structural calculations, what they include, and why Building Control will ask for them.
Read the guide