Jonen: building age and utilization

Canton of Aargau · 1'001 parcels in municipal zones · Parcel data of September 2026

Parcels in zones
1'001
Municipal zones
16
Median utilization (ratioV)
60%
Newest building from 2006 or later
17%
Median building height
9.1 m
Median floors
2.1

Overview

Jonen: the parcel data lists 1'001 parcels in 16 municipal zones.

The median volume utilization (ratioV, as built today) is 60%, the average 65%. For comparison: canton of Aargau, median 35%.

17% of the parcels have a newest building from 2006 or later. Their average utilization is 118%, against 69% for all parcels.

The median building height is 9.1 m and the median number of floors is 2.1.

Building age

Each parcel is counted by the construction year of its newest building. The oldest band also holds parcels without a building year, such as unbuilt land.

Newest buildingParcelsShare
2021 or later101%
2016-2020465%
2011-2015475%
2006-2010646%
1986-200527227%
1966-198510410%
1965 or earlier, or no year45846%

Utilization by construction window

Newest buildingParcelsAverage utilization
Built 2021 or later10101%
Built 2016 or later56114%
Built 2011 or later103123%
Built 2006 or later167118%
Built 1986 or later43998%
Built 1966 or later54394%
All parcels1'00169%

Utilization (ratioV)

ratioV is the volume utilization of a parcel in percent, as built today; values above 100% occur on densely built parcels. The lowest bucket is mostly land with little or no building volume.

Utilization (ratioV)ParcelsShare
Under 10%37238%
10-50%747%
50-100%32433%
100-150%15616%
150-200%263%
200% or more354%

Median: 60% · Average: 65% · Based on 987 parcels with a value.

Building height

Building height in meters, for parcels with a height value.

Building heightParcelsShare
Under 6 m234%
6-10 m39566%
10-16 m17429%
16-30 m30.5%
30 m or more00%

Median: 9.1 m · Average: 9.3 m · Based on 595 parcels with a value.

Floors

Number of floors, for parcels with a floor count.

FloorsParcelsShare
137745%
228534%
316720%
481%
5-600%
7 or more00%

Median: 2.1 · Average: 1.3 · Based on 837 parcels with a value.

Other municipalities in the canton

Method and data

The figures come from the Swiss parcel data (zone statistics of the RES service, pulled in September 2026). Each municipal zone is summarized on its own; a municipality is the sum of its zones, a canton the sum of its municipalities and Switzerland the sum of the cantons. Parcels outside a municipal zone are not counted.

Age uses the construction year of the newest building on a parcel. The distributions leave out the most extreme values, so the parcels with a value can be fewer than all parcels. Percentages are shares of the counts shown; medians are read from the buckets and are exact to within one bucket.

The pages describe what has been built and measured. They are not a forecast, a valuation or a statement of what may be built.