Guides
Extensions
Rear, side, wraparound and double-storey extensions, explained.
Extensions
What drives the cost of a house extension?
The factors that move an extension's price up or down - for published £/m² ranges, see our extension cost guide.
ExtensionsRear vs wraparound extensions
Two of the most common configurations, compared.
ExtensionsExtensions without planning permission: what's actually allowed
The permitted development limits that let many extensions proceed without a full application.