Sch 4 para 7
(1) If A decides that it is reasonable to take a step for the purposes of paragraph 5, A and the disabled person must agree in writing the rights and responsibilities of each of them in relation to the step. (2) An agreement under this paragraph must, in particular, make provision as to the responsibilities of the parties in relation to— (a) the costs of any work to be undertaken; (b) other costs arising from the work; (c) the restoration of the common parts to their former condition if the relevant disabled person stops living in the premises. (3) It is always reasonable before the agreement is made for A to insist that the agreement should require the disabled person to pay— (a) the costs referred to in paragraphs (a) and (b) of sub-paragraph (2), and (b) the costs of the restoration referred to in paragraph (c) of that sub-paragraph. (4) If an agreement under this paragraph is made, A's obligations under the agreement become part of A's interest in the common parts and pass on subsequent disposals accordingly. (5) Regulations may require a party to an agreement under this paragraph to provide, in prescribed circumstances, prescribed information about the agreement to persons of a prescribed description. (6) The regulations may require the information to be provided in a prescribed form. (7) Regulations may make provision as to circumstances in which an agreement under this paragraph is to cease to have effect, in so far as the agreement does not itself make provision for termination.