When you need a building warrant
Before you start building or changing something in your home or business, you may need a building warrant.
A building warrant is permission to start building work. It makes sure your work is safe and follows the rules. It is illegal to start work without a building warrant if one is required.
Work that usually needs a warrant
You will likely need a building warrant if you are:
- putting up a new building
- changing the structure or use of an existing building
- converting a space, like a loft or garage
- extending or demolishing a building
Permission is granted in the form of a building warrant. You must obtain this before starting work.
Work that may not need a warrant
Some small changes do not need a warrant, such as:
- replacing a kitchen or bathroom (if the layout stays the same)
- decorating inside your home
- putting up a small shed or greenhouse (within size limits)
- replacing windows or doors (if they are the same size and type)
Even if a warrant is not needed, the work must still meet building standards.
Conversions that may need a warrant
You need a warrant if you are changing how a space is used. This includes:
- turning a loft into a bedroom
- converting a garage into a living area
- changing a shop into a flat