A * CGT event does not happen, to the extent it relates to creating or varying a * granny flat interest in a * dwelling under an * arrangement by varying the arrangement at a particular time (the variation time ), if:
(a) the individual who holds, or who is to hold, the granny flat interest under the arrangement (as varied) is * eligible for a granny flat interest at the variation time; and
(b) another individual:
(i) holds an * ownership interest in the dwelling at the variation time; or
(ii) agrees, under the arrangement (as varied), to * acquire an ownership interest in a dwelling that is to be the dwelling in which the first - mentioned individual is to hold the granny flat interest; and
(c) at the variation time, both individuals are parties to the arrangement (as varied); and
(d) the arrangement (as varied):
(i) is in writing; and
(ii) indicates an intention for the parties to the arrangement to be legally bound by it; and
(e) the arrangement (as varied) is not of a commercial nature.