Paragraph 11

any income by way of payments in respect of living accommodation or board made by any person residing or usually resident in the relevant premises within the meaning of paragraph 4 of this Schedule ;

in the case of a rebate application by the occupier of a hereditament, such part of any rent received by the occupier from any other person who was (or, if section 49 of this Act had been in force during the relevant assessment period, would have been) entitled to make a rebate application in respect of part of that hereditament as is equal to the amount which, by virtue of paragraph 3 and apart from paragraph 4 of this Schedule, was or would have been the amount of that other person's reckonable rates.