asked the Minister of Health what has been the effect of incentive schemes introduced by contractors engaged in building houses for local authorities; and to what extent the time taken to build houses is thereby reduced.

I would suggest that the hon. Member should await the Second Report of the Girdwood Committee on House Building Costs.

asked the Minister of Health what proportion of the cost of the average subsidised house goes in materials, in labour, and in roads, sewers and land, respectively.

I would suggest that the hon. Member awaits the Second Report of the Girdwood Committee on House Building Costs, which will be published soon.