A change of government won't fix any fundamental problems with housing/infrastructure. These are long-term problems and government thinking is inherently short-term.

Eventually they'll be out, but it'll take a lot of political willpower and capital to clean up the mess they've made in the meantime.

The problem is the gerontocracy as well as incompetence, lack of accountability if not outright corruption in some cases. The current system doesn't have adequate safeguards to defend against these issues and the problem will persist, Tories or not.