I cannot give the information in the form requested, but I am satisfied that the use of industrialised components fabricated off the site is growing steadily, especially in contracts for public authorities. Industrialised systems were used for about 15 per cent. of all new schools in 1962–63 and this proportion is likely to increase in 1964–65. Such systems are also likely to be used in 1964–65 for about 10 per cent. of new local authority houses and about 45 per cent. of new local authority flats.