A day in a chargeable period is relievable in relation to a single-dwelling interest if the dwelling in question is a flat in relation to which the conditions in subsection (2) are met.
The conditions are that on that day—
a company ("the management company") holds the single-dwelling interest for the purpose of making the flat available as caretaker accommodation,
the flat is contained in premises which also contain two or more other flats,
the tenants of at least two of the other flats in the premises are members of the management company,
the management company owns the freehold of the premises, and
the management company is not carrying on a trade or property rental business.
For the purposes of subsection (2), the management company makes a flat available "as caretaker accommodation" if it makes it available to an individual for use as living accommodation in connection with the individual's employment as caretaker of the premises.
In this section "premises" means premises constituting the whole or part of a building.