The single biggest issue in the housing market is when the lenders decoupled income from maximum mortgage. In the late 90s it was capped at 3.5x single income, 2.5x joint income. The enforced a tie between house prices and salary. Sadly that was done away with and since then house prices have rocketed. They need to bring this back in, but they cant due to the massive negative equity it would put lots of people in. Government schemes to prop up an artificially inflated market do far more harm than good.