Trees are drawn, coloured by the mix of voting at the general election, showing local housing market structure (Appendix D) in the 633 mainland parliamentary constituencies on the equal population cartogram — software by author on an Archimedes computer.
The basic picture is clear; where the owner occupied market is large (the tree trunks wide) the areas tend to be blue, elsewhere, red. This simple relationships is not true in some areas (in Yorkshire for example). In general, the picture shows the Conservative party’s territory reflected through the places whose areas are in proportion to the prices fetched for the houses sold there.
Second print from a series of three.