By updating its property registry, Guerrero's state government has raised its annual revenue from property tax by 38%, which officials hope will result in higher public investment.

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Despite the continued rise in property prices recorded by the Land Registry, some banks and building societies have warned that prices have reached a peak.

BBC: Big rise in house prices

Because it takes virtually all residential property sales into account, the Land Registry's figures can provide a unique insight into not only national but local prices.

BBC: House price surveys explained

The Land Registry, which records all completed property sales in England and Wales, has been recording the price of all property sales since April 2000, although the data now goes back to January 1995.

BBC: House price surveys explained

In response to the property market's weakness, the government has tried aggressive resuscitation, including a discount on land-registry transfer duties.

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