Owner occupier
When the owner of a building also resides in it, they are referred to as the ‘owner occupier’.
An owner occupier may be the sole resident of a house. But if the property is part rented, the owner occupier will live alongside the tenant (who is an occupier) and will usually be paid rent by the tenant or tenants. In this case, the owner occupier is also the landlord and must assume the usual responsibilities and duties expected of a landlord, assuming that both are party to a rental contract (eg assured shorthold tenancy).
The same applies to flats: if the owner lives in the property, they are considered the owner occupier. It is immaterial whether the owner occupier has a mortgage and owes money on the property: they are still regarded as the property owner and therefore the owner occupier.
In theory, a company or corporation may also be an owner occupier. For example, in the case of an office building, the owner may use the entire building as offices. Or, they may occupy a section of the building and rent out the remaining floorspace to other companies (who are regarded as being tenants and occupiers). In both cases, the owner is also the owner occupier.
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
CIOB celebrates positive Ofsted report.
The Building Safety Regulator announces a call for evidence.
Government approach could undermine delivery and regeneration.
World's first mass timber data centre.
The overlooked environmental aspect of data centre development.
Introduction to radon awareness
New technical information sheet published by CIOB.
Updated supplier guide can help electrical contractors engage with NHP.
CIAT confirm the winners of the 2026 architectural technology awards.
Government launches a one stop shop for flood preparedness.
Sir Edwin Lutyens: Britain's greatest architect? Book review.
CIOB publishes free template to help assess and manage risks.
ECA's reflections on Party Conference season
Burnham wants to be confident of winning before asking for a fresh mandate.
New Chief Construction and Scientific Adviser
Sergio Cavalaro, Professor of Infrastructure Systems at Loughborough University.
















