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Blenio: observed built density

Municipality in the canton of Ticino · FSO no. 5049 · Parcel data as of July 2025

The parcel data covers only part of the land in the canton of Ticino, so figures here may be incomplete.

Parcels
514

< 1 % of the canton

Municipal zones
19
Median utilization
8 %

Canton: 10 %

Switzerland: 10 %

Median GFZ
0.08

Canton: 0.09

Switzerland: 0.09

Median height
8.0 m

Canton: 8.7 m

Switzerland: 9.5 m

Median floors
1.8

Canton: 1.9

Switzerland: 2.3

About Blenio

Blenio is a municipality in the canton of Ticino. The parcel data lists 514 parcels in 19 municipal zone types. The zone types with the most parcels are Zona agricola (272), Zona nucleo del villaggio (78) and Zona residenziale semi-estensiva (54).

The median parcel is built to a volume utilization of 8 %; half of the parcels lie between 4 % and 59 %. The canton median is 10 %, so Blenio sits below it.

The median building height is 8.0 m at 1.8 floors, and the median floor-area ratio (GFZ) is 0.08.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Zona agricola2720 %
Zona nucleo del villaggio78105 %
Zona residenziale semi-estensiva5428 %
Vuoto pianificatorio330 %
Zona forestale (indicativa)310 %
Territorio senza destinazione specifica200 %
Percorso pedonale50 %
Acque di superficie30 %
Edificio d'interesse pubblico (vincolo a favore del Comune)316 %
Edificio d'interesse pubblico (vincolo a favore di altri enti)32 %
Strada di servizio20 %
Zona alberghiera250 %
Other zones (7)8-

Volume utilization (ratioV)

Of the 499 parcels with a value, half lie between 4 % and 59 %. The median is 8 % and the mean 49 %.

0 %300 %+

Share of parcels by range

  • below 50 %73 %
  • 50 % to below 100 %9 %
  • 100 % to below 150 %6 %
  • 150 % and above12 %

Floor-area ratio (GFZ)

Of the 499 parcels with a value, half lie between 0.04 and 0.36. The median is 0.08 and the mean 0.33.

0.003.00+

Share of parcels by range

  • below 0.5079 %
  • 0.50 to below 1.008 %
  • 1.00 to below 1.506 %
  • 1.50 and above7 %

Building height

Of the 196 parcels with a value, half lie between 6.8 m and 9.5 m. The median is 8.0 m and the mean 8.3 m.

0 m60 m+

Share of parcels by range

  • below 8 m49 %
  • 8 m to below 12 m46 %
  • 12 m to below 20 m5 %
  • 20 m and above0 %

Number of floors

Of the 200 parcels with a value, half lie between 1.3 and 2.3. The median is 1.8 and the mean 1.8.

016+

Share of parcels by range

  • below 230 %
  • 2 to below 360 %
  • 3 to below 510 %
  • 5 and above0 %

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 inParcelsMean utilization
All years51454 %
Last 60 years5694 %
Last 40 years2688 %
Last 20 years10115 %
Last 15 years8127 %
Last 10 years3103 %
Last 5 years3103 %

Open the map at Blenio

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).