London topped the list with 49 per cent of development space completed last year, while the West Midlands and North West accounted for 12 and 15 per cent respectively. The wider South East, including East Anglia, accounted for 61 per cent of the total.
There were also dramatic differences between the types of projects completed, with residential space increasing by 27 per cent between 2009 and 2010, commercial completions up by 26 per cent, but a 64 per cent drop in the amount of retail space completed.
At 16.3 per cent, the South East was well ahead of the 10.2 per cent national average of completed work on planned developments, while in Scotland, Wales, the North East and the West Midlands the figures were just 1.8, 1.7, 1.5 and six per cent respectively.
The analysis revealed that private sector commitments increased 27 per cent from £7.4bn in 2009 to £9.4bn in 2010. Meanwhile, the public sector has committed to spend £6.4bn this year, up from £5.5bn in 2010.