PS to my post.
The best way to make house prices wobble is for a community to take the sort of disruptive action that has happened here. Nothing loses sales and depresses values more than the lack of goodwill, neighbour tension, and reports of people harassing visiting children. Living near to a good nursery is in fact a desirable feature for which people will pay much in the same way as they pay to live in the catchment area of a good school.

Bit late for that however.