THE man who has helped secure commitment to £2.5billion of infrastructure funding for the rapidly expanding Cambridge sub-region over the next 15 years is set to leave the area. But Stephen Catchpole is confident that some additional public sector money can help to raise the rest of the £3.1billion identified as being needed to support nearly 50,000 extra homes - 11,200 of them in Huntingdonshire. Mr Catchpole became the first chief executive of Cambridgeshire Horizons, the company set up by the county's six local authorities and other partners to deliver sustainable communities in the area, three years ago after six years running the Learning and Schools Council for Cambridgeshire and Peterborough. He has lived in the county for the past 20 years, 16 of them in St Neots. But he is set to move on in November to take up the newly created post of chief executive of Wolverhampton City Development Company in the West Midlands.