<p>Bellway"s strategy of increasing volume, average selling price and margin remains on course after a good Autumn period.</p> <p>In an interim report to the City, the firm says that reservations in the period were 14% up and visitor levels also increased, with average selling price rising 7%.</p> <p>Legal completions are up 5% and the firm is increasing its number of sites, or trading outlets, to 215.</p>