A National Multiple-Use Approval (NMU) is a statement that a set of plans and specifications for a building complies with the Building Code. They are also known as a MultiProof.
The MultiProof scheme is beneficial for builders and companies that build standardised designs. It provides evidence of compliance for Building Consent Authorities (BCAs).
How MultiProof works
MultiProof establishes that a design complies with the New Zealand Building Code.
When your building consent application includes a MultiProof, the BCA must grant or refuse it within 10 working days instead of the usual 20 days.
The BCA confirms and establishes:
- the design, with any permitted variations, is the same as the design approved in the MultiProof
- the proposed site meets the conditions of the MultiProof
- the site-specific features of the design comply with the Building Code
- the number and type of inspections required.
Who should use MultiProof
MultiProof is beneficial for those who:
- build or intend to build a number of similar designs
- use standard construction details for a range of similar buildings
- want to save time when applying for a building consent
- need consistency when applying for building consents to different BCAs
- can build the approved design at least 10 times in a two-year period.
Examples where MultiProof may be applicable include:
- modular units
- relocatable classrooms.
To apply for MultiProof, your design will need to meet certain requirements.
Contact us for help if you are considering applying for a MultiProof building consent.