A building is not a qualifying building in relation to a group repairscheme unless, at the time the scheme is prepared, the whole or some part ofthe exterior of the building is not in reasonable repair and that lack ofreasonable repair affects at least 75 per cent. of the houses contained in thebuilding.
Every group repair scheme shall relate to at least one qualifying building(in this section referred to as "the primary building") which was constructed so as tocomprise not less than four separate houses and may also relate to one or moreother qualifying buildings if the following conditions are fulfilled withrespect to each of them—
The question whether a building was constructed so as to comprise not lessthan four houses or at least one house shall be determined according to theconfiguration of the building at the date of its construction.
For the purposes of this section—
In relation to a group repair scheme, "external works" are works to any part of the exterior of abuilding to which the scheme relates and, so far only as may be necessary togive satisfactory effect to such works, additional works to other parts of thebuilding.
For the purposes of this Part, the exterior of a building means—
and, in relation to works to any part of the curtilage referred to inparagraph (b) above, the reference in subsection (5) above to additional worksto other parts of the building includes a reference to additional works onland outside the curtilage.
In this section—
For the purposes of this Part, unless the exterior of a building issubstantially free from rising or penetrating damp, it shall not be regardedas in reasonable repair.