** Housebuilders on a tear as British election results pointto Prime Minister David Cameron's Conservatives poised for a return to power without need of a formal coalition
** Berkeley Group the clear outperformer, up 9.1pct, on course for biggest one-day rise since Dec 2013 & 2nd-topFTSE 250 riser, with Labour's "mansion tax" having beena particular cause for concern for London housebuilders
** Estate agents Savills & Countrywide third& fourth-top UK midcap risers, both up >8 pct
** Gains seen across the sector, with the Thomson Reuters UKHomebuilding index up 6.3 pct at a record high& on course for its biggest one-day rise in c.2 yrs
** Index had fallen some 5 pct from a mid-April peak untilThursday's close; Labour's "use it or lose it" policy fordevelopers who own land that could be used for homes had alsounnerved investors (RM: tricia.wright1.thomsonreuters.com@reuters.net)