by veto » Mon Apr 11, 2011 7:47 pm
A tenant is someone who owns a lease. Any other form of occupation (other than as freehold owner) would be as a licensee only.
Your question mentions a "tenant" who is "let" (ie leased) a unit. By definition, to be a tenant / to have a lease you must have exclusive possession. So if someone is described as a tenant or having a lease, they must have exclusive possession.
I have not really come across the term exclusive occupation, but I can't see how it would mean anything different to exclusive possession anyway.
The situation of a single building divided into multiple units is very common - possibly the most common commercial letting scenario. The question of a shared front door is a bit of a red herring. A "front door" onto the street could easily lead into a shared foyer from which 2 separate units are accessed. A "front door" inside a building could still lead into a shared area from which 2 separate units are accessed. Provided the "tenant" has exclusive possession of his area (and pays a market rent or has paid a premium) there will be a lease.