Sch 2 para 16F
(1) A building is treated for the purposes of paragraph 16E as continuing to be suitable for use as a dwelling at any time when it has become temporarily unsuitable for use as a dwelling. (2) There is an exception to this rule if— (a) the temporary unsuitability resulted from accidental damage to the building, and (b) the damage resulted in the building becoming unsuitable for use as a dwelling for a period of at least 90 consecutive days (“the 90 day period”). (3) This exception does not apply if the damage occurred in the course of work that— (a) was being done for the purpose of altering the building, and (b) itself involved, or could be expected to involve, making the building unsuitable for use as a dwelling for at least 30 consecutive days. (4) If the exception applies, work done in the 90 day period to restore the building to suitability for use as a dwelling is not to count for the purposes of paragraph 16E as constructing or adapting the building for use as a dwelling. (5) For the purposes of this paragraph— (a) references to accidental damage include damage otherwise caused by events beyond the control of the person disposing of the interest in land, (b) references to alteration of a building include its partial demolition, and (c) the 90 day period does not include the day of the disposal (or later days). (6) For the purposes of this paragraph a building’s unsuitability for use as a dwelling is not regarded as temporary if paragraph 16G applies (disposal of a building that has undergone works).