No. of floors under ground level Type of building Total Total Total 9,814,785 Total Mainly or exclusively for dwellings 9,730,999 Total Other purposes 83,786 0 Total 9,325,167 0 Mainly or exclusively for dwellings 9,247,273 0 Other purposes 77,894 1 Total 454,603 1 Mainly or exclusively for dwellings 449,315 1 Other purposes 5,288 2 or over Total 35,015 2 or over Mainly or exclusively for dwellings 34,411 2 or over Other purposes 604