It is unhelpful to the increase in housing supply if planning permissions wither after two years. This was one of the outcomes of the review of Part V of the Act. There was no support for the complete repeal of the Part, rather for an examination of the withering rule which the Minister has deleted. He was not prepared to do that for nothing and has imposed a levy towards social and affordable housing. The urgency of the Bill is to be seen in the fact that, had the Minister not acted, planning permission for 44,000 housing units would have expired at the end of December this year and another 36,000 over the course of next year. A grand total of 80,000 units would not be built because of the withering rule.