Excessive housing costs
18.—(1) Subject to paragraph (2), the amount of the housing costs of an absent parent which are to be taken into account—
(a)under regulation 9(1)(b) shall not exceed the greater of £80·00 or half the amount of N as calculated or estimated under regulation 7;
(b)under regulation 11(1)(b) shall not exceed the greater of £80·00 or half of the amount calculated in accordance with regulation 11(2).
(2) The restriction imposed by paragraph (1) shall not apply where—
(a)the absent parent in question—
(i)has been awarded housing benefit (or is awaiting the outcome of a claim to that benefit);
(ii)has the day to day care of any child; or
(iii)is a person to whom a disability premium under paragraph 11 of the relevant Schedule applies in respect of himself or his partner or would so apply if he were entitled to income support and [had not attained the qualifying age for state pension credit];
(b)the absent parent in question, following a divorce from, [dissolution of a civil partnership with,] or the breakdown of his relationship with, his former partner, remains in the home he occupied with his former partner;
(c)the absent parent in question has paid the housing costs under the mortgage, charge or agreement in question for a period in excess of 52 weeks before the date of the first application for child support maintenance in relation to a qualifying child of his and there has been no increase in those costs other than an increase in the interest payable under the mortgage or charge or, as the case may be, in the amount payable under the agreement under which the home is held;
(d)the housing costs in respect of the home in question would not exceed the amount set out in paragraph (1) but for an increase in the interest payable under a mortgage or charge secured on that home or, as the case may be, in the amount payable under any agreement under which it is held; or
(e)the absent parent is responsible for making payments in respect of housing costs which are higher than they would be otherwise by virtue of the unavailability of his share of the equity of the property formerly occupied with his partner and which remains occupied by that former partner.