Period of construction | Adjusted number of building permits per decade | Number of dwellings in 2011 | 2011 dwelling stock as proportion of building permits (%) | Loss of dwelling stock based on building permit survey (% per decade) |
---|---|---|---|---|
<=1910 | 14,749 | |||
1911-1920 | 19,743 | |||
1921-1930 | 24,100 | |||
1931-1940 | 21,929 | |||
1941-1950 | 53,248 | |||
1951-1960 | 94,847 | |||
1961-1970 | 179,190 | 121,666 | 68 | 6 |
1971-1980 | 290,927 | 257,696 | 89 | 3 |
1981-1990 | 236,003 | 231,815 | 98 | 1 |
1991-2000 | 260,817 | 275,815 | 106 | 0 |
2001-2010 | 261,240 | 261,226 | 100 | 0 |
Unknown | 76,792 |