86Housing arrangements
(1)In this Part of this Act "housing arrangements", in relation to a dwelling falling within section 85(1) above, means arrangements falling within subsection (2) below and making provision for the housing of an occupying tenant of the dwelling and his household—
(a)during the period when improvement works are being carried out, or
(b)after the completion of those works, or
(c)during that period and after completion of those works,
and for any matters incidental or ancillary thereto.
(2)The arrangements referred to in subsection (1) above are arrangements contained in a written agreement to which the occupying tenant and either or both of his landlord and the local authority concerned are parties.