What recent assessment he has made of the effect of government schemes to increase house building. [R]

First, I commend the right hon. Gentleman on his clear, common-sense leadership during the recent events in Woolwich.

The Government closely monitor the rate of house building. We are on target to deliver 170,000 affordable homes by 2015, and we completed 58,000 of them in 2011-12. We assess that to be one third higher than the annual average delivered in the 10 years leading up to the last election.

May I draw attention to my interests, and thank the hon. Gentleman for his kind remarks?

The National Audit Office, in a recent report, described the new homes bonus as not only badly modelled, but largely ineffective, yet it is hugely expensive, having already led the Government to commit more than £1 billion, with that commitment rising to over £3 billion in the short term. When will the Government reconsider this measure, which appears to have little or no effect and comes at vast cost?

I think that the right hon. Gentleman knows that the National Audit Office also said that it is too early, in the process of the programme, to tell whether there is an impact. He knows that well from his experience as a Minister. It made some suggestions on how the technical modelling could be improved, and we are always open to such suggestions. On the question of a review, it was always our intention, over the coming year, to look to review the programme, as we do all programmes. I remind him and the House that the programme has enabled councils to be rewarded for delivering in the region of 400,000 more homes.

In support of Government schemes to increase house building, what action is being taken to press Government Departments and public bodies in general to dispose of surplus sites and property? In my experience, the NHS is by far the worst offender.

The hon. Gentleman has been a powerful advocate for the hospital site in Colchester about which he and I had a meeting. We have been able to organise the disposal of land for some 33,000 homes. There is much more to do in the health service, across the defence estate, and elsewhere, but this is an important priority, and I understand the point that he raises.