The design and construction team

Certain types of work are defined as Restricted Building Work (RBW) and must be carried out or supervised by a licensed building practitioner (LBP). The aim is that design and construction work crucial to the structural integrity and weathertightness of a residential building is only carried out or supervised by people who have been assessed as competent.

You can search the online public register to find an LBP, check that a person is licensed and see if they have been disciplined in the last 3 years. You can also ask to see the photo licence card of a licensed practitioner.

Registered architects and chartered professional engineers are treated as LBPs in the design class. This means that they can design or supervise the design of RBW.

Restricted Building Work is work on:

  • foundations and structure
  • external cladding (wall and roof)
  • fire safety systems for houses.


RBW does not include demolition or removal work.

There is an exemption that allows homeowners to do RBW on their own homes, but they need to complete a statutory declaration, and the fact that they have done this work themselves will be noted on council records and be accessible by potential future buyers of the house.

MBIE has produced useful guidance documents that can be found here.

Updated: 14 September 2015