Determinations and tiny houses on wheels

Family outside modern tiny house

Learn more about our determinations process, previous determinations on tiny houses and requirements for different trailers types.


Determinations are made by the Ministry of Business, Innovation and Employment (MBIE) on matters of doubt or dispute to do with building work.

Rulings are legally binding, but only in relation to each case. Previous determinations may provide useful insight for those who are faced with similar problems, but each individual circumstances may vary.

Learn more about our determinations process

Find about more about previous determinations

Building a tiny house on wheels

Building a tiny house on a trailer/on wheels does not automatically make it a vehicle there are other factors that you need to consider. There may also be weight requirements that will determine whether it could be determined as a vehicle (trailer) or a load.

Find out more about light trailer requirements -

Find out more about heavy trailer requirements -

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: