| Main dwellings in buildings destined mainly for dwellings according to year of construction of the building (grouped) by number of rooms . 48-Vizcaya |
| TOTAL | Before 1900 | 1900-1920 | 1921-1940 | 1941-1950 | 1951-1960 | 1961-1970 | 1971-1980 | 1981-1990 | 1991-2001 | |||
| TOTAL | 395128 | 22959 | 10197 | 16236 | 16752 | 57273 | 118808 | 90229 | 28856 | 33818 | ||
| 0,17% | 0,35% | 0,59% | 0,33% | 0,19% | 0,17% | 0,11% | 0,10% | 0,17% | 0,16% | |||
| 1 room | ||||||||||||
| 2 rooms | 1,04% | 2,30% | 2,52% | 1,50% | 1,47% | 1,27% | 0,83% | 0,46% | 0,69% | 1,52% | ||
| 3 rooms | 6,04% | 8,09% | 9,68% | 8,54% | 7,74% | 7,21% | 5,89% | 4,14% | 4,88% | 6,08% | ||
| 4 rooms | 25,94% | 22,31% | 27,45% | 29,79% | 30,49% | 34,85% | 33,11% | 15,18% | 14,00% | 22,47% | ||
| 5 rooms | 49,12% | 31,70% | 33,47% | 33,94% | 38,36% | 42,93% | 48,69% | 62,76% | 55,74% | 48,28% | ||
| 6 rooms | 12,24% | 18,18% | 14,36% | 15,44% | 13,34% | 9,48% | 8,63% | 13,64% | 18,69% | 13,65% | ||
| 7 rooms | 3,06% | 8,54% | 6,06% | 5,57% | 4,64% | 2,20% | 1,64% | 2,27% | 3,41% | 4,64% | ||
| 8 rooms | 1,24% | 4,39% | 3,01% | 2,35% | 1,96% | 0,96% | 0,58% | 0,73% | 1,27% | 1,83% | ||
| 9 rooms | 0,56% | 1,89% | 1,21% | 1,27% | 0,86% | 0,48% | 0,27% | 0,33% | 0,60% | 0,69% | ||
| 10 or more rooms | 0,59% | 2,25% | 1,66% | 1,27% | 0,95% | 0,45% | 0,25% | 0,38% | 0,55% | 0,68% | ||