A building warrant is an approval granted by a local authority that allows construction or alteration work to proceed in accordance with building regulations. It ensures that the proposed work meets safety, environmental, and structural standards before it begins.
In Scotland, a building warrant is required for most types of building work, including extensions, conversions, and major alterations. Whist the planning permission determines whether a project is allowed based on land use and aesthetics, the building warrant is about how the project will be built and confirms that the construction will be of suitable standard.