| Decade | Number of projects | Residential units |
|---|---|---|
| In the making | 39 | |
| 2020-2029 | 22 | |
| 2010-2019 | 75 | |
| 2000-2009 | 87 | |
| 1990-1999 | 113 | |
| 1980-1989 | 29 | |
| Realization before 1980 | 9 | |
| Not realized | 9 | |
| Total (without "Not realized"); Note 1) | 325 |
Note 1) While the settlements and neighbourhoods with ecological objectives from 1980 to 2010 and above 20 dwellings in size are fairly complete, there may be some gaps in the period of the last 10 years. One issue here is that due to the normality of the measures, many of the projects no longer explicitly refer to themselves as 'eco-settlements' or 'eco-neighbourhoods'. They are also no longer published in the media because there are few innovations compared to earlier projects. In this respect, it can be assumed that the realised housing units of sustainable settlements and quarters will be about 10 to 20 % higher from 2010.
