The following matters must be considered when working out the amount of compensation payable in relation to a worker under section 70 (1) (b):
(a) the likely period for which the alteration will be required;
(b) any difficulty faced by the worker in gaining access to, or enjoying reasonable freedom of movement in the worker's place of residence;
(c) if the worker previously received compensation under section 70 (1) (b) in relation to an alteration to the worker's place of residence and later disposed of the place—whether the value of that place increased as a result of the alteration.