TWIGDEN Homes has made a series of land acquisitions and will be building more than 500 extra new houses this year.
The largest development of 350 homes is in Royston, Hertfordshire, where Twigden has outline planning permission for the first phase.
Managing director Kevin Dixon said: 'We are obviously delighted by the land successes that we have had in recent months.
'We are actively looking for more land and are interested in buying sites of one acre and upwards.'
Mr Dixon said the firm was targeting Cambridgeshire, Leicestershire, Warwickshire, Norwich, Bedfordshire, Essex, Northamptonshire, Buckinghamshire and north Hertfordshire.
Land director Andrew Walkerdine said: 'Due to the wide range of quality housing we offer, we have the flexibility to purchase land in a variety of locations.'