The public has been advised not to leave it to estate agents to value their homes, but to do their own research.

The advice comes from the Home Owners Alliance.

It publishes two ‘House Price Watch’ guides aimed at helping people find out how much their homes are worth in their areas.

However, both guides look incredibly complicated and contain inherently contradictory advice.

The first guide quotes the Land Registry, LSL, Nationwide, Halifax, Rightmove and Hometrack, and shows a bewildering range of prices moving up 1.7% and falling 2.9%.

The second guide simply averages five indices – Land Registry, LSL, Nationwide, Halifax and Hometrack, but with the notable omissions of the RICS and ONS.

We’re not quite sure what economists would make of simply averaging five completely different indices – some of which quote prices while others don’t, some of which are seasonally adjusted and others not, and which also cover different time frames, since the Land Registry data relates to prices agreed months ago, while Nationwide and Halifax relate to more up-to-date prices but only on the basis of mortgage approvals.

Still, who are we to judge?

The public might find it useful. Personally, we’d rather ask an estate agent.