Bovis Homes’ reservations have leapt 92% during the first half of 2009, the housebuilder revealed in its half-yearly statement. It has reduced its net debt from £108 million as of 31 December 2008 to £14 million at 30 June 2009. But Bovis also reported a pre-tax loss of £8.6 million, down from a profit of £9.5 million in the first …