Property website Rightmove led a decline in housing sector today after one of its own surveys showed a 4.8% fall in house prices since last year.
Rightmove shares were down 4.7% to 305p, and at one point it was the biggest percentage faller in the FTSE 250.
House builder Persimmon suffered as a result of the survey - which found the average asking price fell to £229,816 in August, a record 2.3% month-on-month decline.
Persimmon was down 4.1% to 337.25p, while Bovis Homes slid 3.8% to 434.75p.
Building materials group Wolseley was down 1.9% to 430.5p.
On a seesawing day for the FTSE 100, the bluechip index reversed an early slide to come up 25.3 points, or 0.5%, to 5480.1 at lunchtime.
