Tim Harford’s weekend column on the state of Britain’s housing market and a possible solution to the disconnect between supply and demand:
The chief obstacle to house building in the UK is the planning system, which, 65 years ago, did away with the idea that if you owned land, you could build on it, and replaced it with a system where planning permission was required. Permission to build houses is severely rationed, and such rationing can be seen clearly in the gap between the value of agricultural land without planning permission (a few thousand pounds a hectare) and the value of such land once permission has been granted (a few million).
The difficulty is that local authorities have the ability to grant planning permission but have little incentive to do so, because it tends to be unpopular with existing voters. The huge windfall from winning planning permission falls to whoever has managed to speculate on land and navigate the tangle of planning rules. These serve as nice barriers to entry for existing developers, while driving up the price of building land and so driving down the size of new homes.
Tim Leunig, chief economist at CentreForum, a think-tank, has proposed a two-part system of land auctions to get around this problem. Local authorities would buy land at auction, grant planning permission on it and then sell the land on to developers — with some strings attached, if they so choose. The profits would be enormous, and enjoyed by existing residents in the form of lower taxes or better public services. This isn’t the only way to liberalise planning, but it retains local control and democratic accountability — while dramatically increasing the incentive to develop.
Restoring a free market right to build on property you own would also be a fast solution to the diminished housing supply, but when have governments at any level willingly given up power?
