Rafz: observed built density
Municipality in the canton of Zurich · FSO no. 67 · Parcel data as of July 2025
- Parcels
- 2’020
1 % of the canton
- Municipal zones
- 21
- Median utilization
- 39 %
Canton: 40 %
Switzerland: 10 %
- Median GFZ
- 0.10
Canton: 0.22
Switzerland: 0.09
- Median height
- 9.8 m
Canton: 10.5 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.8
Switzerland: 2.3
About Rafz
Rafz is a municipality in the canton of Zurich. The parcel data lists 2’020 parcels in 21 municipal zone types. The zone types with the most parcels are Kantonale Landwirtschaftszone (623), Kernzone (427) and Wohnzone 1 Geschoss (300).
The median parcel is built to a volume utilization of 39 %; half of the parcels lie between 5 % and 97 %. The canton median is 40 %, close to the level of Rafz.
The median building height is 9.8 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.10. Parcels built in the last 20 years reach a mean volume utilization of 111 % (238 parcels), higher than the 67 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Kantonale Landwirtschaftszone | 623 | 0 % |
| Kernzone | 427 | 72 % |
| Wohnzone 1 Geschoss | 300 | 67 % |
| Wohnzone, 3 Geschosse | 215 | 93 % |
| Wald | 103 | 0 % |
| Wohnzone B, 2 Geschosse | 102 | 79 % |
| Wohnzone A, 2 Geschosse | 65 | 80 % |
| Wohnzone B mit Gewerbeerleichterung, 2 Geschosse | 51 | 85 % |
| Industrie- und Gewerbezone IG2 | 48 | 73 % |
| Wohnzonen mit Gewerbeerleichterung 3 Vollgeschosse | 32 | 192 % |
| Industrie- und Gewerbezone IG1 | 16 | 62 % |
| Zonen für öffentliche Bauten | 16 | 86 % |
| Other zones (9) | 22 | - |
Volume utilization (ratioV)
Of the 1’998 parcels with a value, half lie between 5 % and 97 %. The median is 39 % and the mean 61 %.
Share of parcels by range
- below 50 %53 %
- 50 % to below 100 %23 %
- 100 % to below 150 %15 %
- 150 % and above9 %
Floor-area ratio (GFZ)
Of the 1’996 parcels with a value, half lie between 0.05 and 0.58. The median is 0.10 and the mean 0.35.
Share of parcels by range
- below 0.5069 %
- 0.50 to below 1.0020 %
- 1.00 to below 1.508 %
- 1.50 and above3 %
Building height
Of the 1’083 parcels with a value, half lie between 8.2 m and 11.4 m. The median is 9.8 m and the mean 9.7 m.
Share of parcels by range
- below 8 m21 %
- 8 m to below 12 m63 %
- 12 m to below 20 m16 %
- 20 m and above0 %
Number of floors
Of the 817 parcels with a value, half lie between 1.8 and 3.0. The median is 2.3 and the mean 2.4.
Share of parcels by range
- below 212 %
- 2 to below 346 %
- 3 to below 541 %
- 5 and above< 1 %
Building age cohorts
Mean volume utilization of the parcels built inside each window, from all years on record down to the last five. The windows overlap: the last 20 years include the last 5.
| Built in | Parcels | Mean utilization |
|---|---|---|
| All years | 2’020 | 67 % |
| Last 60 years | 744 | 110 % |
| Last 40 years | 554 | 116 % |
| Last 20 years | 238 | 111 % |
| Last 15 years | 162 | 116 % |
| Last 10 years | 112 | 113 % |
| Last 5 years | 39 | 120 % |
How to read this page
room shows observed built density: what has been built on the parcels, not what the zoning permits. Volume utilization (ratioV) compares the built volume of a parcel with the reference volume of its municipal zone type. The floor-area ratio (GFZ) is floor area divided by parcel area; building height and number of floors are taken from the buildings on a parcel. Figures pool all municipal zones of the area. Medians and quartiles are read from bins 10 points (ratioV), 0.1 (GFZ), 2 m (height) and 1 floor wide, so they are exact to within one bin; means are exact. A parcel counts in a distribution only when the parcel data has a value for it. The floors distribution leaves out parcels without a building (0 floors).