The Housing (Preservation of Right to Buy) Regulations 1989

137.    Change of landlord after notice claiming right to buy.

(1) Where, other than in a case to which section 171D(1)(a) or section 171E(2)(a) applies (disposal to authority or body satisfying landlord condition for secure tenancies), the interest of the landlord in the dwelling-house passes from the landlord to another person after a qualifying person has given a notice claiming to exercise the right to buy, all parties shall subject to subsection (2) be in the same position as if the other person had become the landlord before the notice was given and had given that notice and any further notice given by the qualifying person to the landlord and had taken all steps which the landlord had taken.

(2) If the circumstances after the disposal differ in any material respect, as for example where–

(a) the interest of the disponee in the dwelling-house after the disposal differs from that of the disponor before the disposal, or

(c) any of the provisions of Schedule 5 (exceptions to the right to buy) becomes or ceases to become applicable,

all those concerned shall, as soon as practicable after the disposal, take all such steps (whether by way of amending or withdrawing and re-serving any notice or extending any period or otherwise) as may be requisite for the purpose of securing that all parties are, as nearly as may be, in the same position as they would have been if those circumstances had obtained before the disposal.