HC Deb 10 February 1977 vol 925 c769W
Mr. Goodhew

asked the Secretary of State for the Environment what is the average annual maintenance cost of a traditional brick-built house as compared with that of maintaining the average system-built house.

Mr. Armstrong

I am unable to compare the average annual maintenance cost of a traditional brick-built house with that of an average system-built house because the limited records available for publicly and privately built houses generally make no distinction between the various construction methods employed.