
Average number of bedrooms in new British houses 1930-2020
declining family sizes caused this number to gradually decrease from the 1980s onwards, and in the 2010s the average number of bedrooms has fallen to 2.95 rooms per house.
For the first time since data became available, newly-built houses in Britain have been built with fewer than three bedrooms per house in the 2010s. From the 1930s until the 1980s, the number of bedrooms fluctuated between 3.16 and 3.63 rooms per house, however