Building age in the canton of Basel-Landschaft

Canton of Basel-Landschaft, 86 municipalities

Building register (GWR) export of September 2026, parcel data of July 2025.

Key figures

Parcels with a building
71’733
69’892 of them with a known construction year
Median construction year
1979Switzerland: 1976
Median building age
47 yearsSwitzerland: 50 years
Built 1960 or earlier
25.7%Switzerland: 32.5%
Built after 2000
21.7%Switzerland: 23.3%

About the building stock in the canton of Basel-Landschaft

The parcel data lists 71’733 parcels with a building in the canton of Basel-Landschaft. For 69’892 of them (97.4%) the federal building register (GWR) gives a construction year, taken from the newest building on the parcel. The median construction year is 1979, so the median parcel with a building is 47 years old. 25.7% of the parcels with a known year were built in 1960 or earlier and 21.7% after 2000. The largest period is 1961-1980 with 27.4%. For comparison, the median construction year is 1976 in Switzerland. 1’841 parcels with a building have no usable construction year and are left out of the shares.

Construction-year histogram

Parcels with a building by construction period, as a share of the 69’892 parcels with a known year. The periods are not equally long, so read the bars as shares of the stock, not as building activity per year.

  1. 9.3%before 1920: 9.3%, 6’471 parcels
  2. 6.3%1920-1945: 6.3%, 4’429 parcels
  3. 10.1%1946-1960: 10.1%, 7’092 parcels
  4. 27.4%1961-1980: 27.4%, 19’157 parcels
  5. 25.2%1981-2000: 25.2%, 17’589 parcels
  6. 10.4%2001-2010: 10.4%, 7’264 parcels
  7. 8.0%2011-2020: 8.0%, 5’609 parcels
  8. 3.3%2021 and later: 3.3%, 2’281 parcels

Building age distribution

The same parcels grouped by the age of their newest building in 2026.

  • 66 years or older (built 1960 or earlier)25.7%17’992 parcels
  • 46 to 65 years (built 1961-1980)27.4%19’157 parcels
  • 26 to 45 years (built 1981-2000)25.2%17’589 parcels
  • Up to 25 years (built 2001 or later)21.7%15’154 parcels

How to read these figures

The parcel data links every parcel to the federal building register (GWR). A parcel counts once, with the construction year of its newest building. Where the register gives only a construction period, the middle of the period is used.

The figures count parcels with a building, not individual buildings. A parcel with several buildings counts once, and a parcel without a building is not counted.

Building age is 2026 minus the construction year. Every share divides by the parcels with a known construction year.

Municipalities in the canton of Basel-Landschaft

MunicipalityParcels with a yearMedian year1960 or earlierAfter 2000
Reinach (BL)4’314197815.1%15.3%
Muttenz3’665197434.3%19.1%
Allschwil3’203196839.9%18.6%
Liestal2’784197735.1%23.1%
Münchenstein2’665196444.7%14.5%
Binningen2’617197036.6%19.6%
Pratteln2’581197629.3%21.3%
Therwil2’56319798.8%17.6%
Oberwil (BL)2’507197716.6%22.1%
Aesch (BL)2’307197814.8%20.2%
Arlesheim1’805197233.4%17.5%
Gelterkinden1’665197629.1%20.9%
Bottmingen1’621198015.8%19.0%
Sissach1’488197934.0%24.7%
Bubendorf1’374198717.2%18.2%
Lausen1’352198320.6%24.4%
Ettingen1’330197912.9%19.1%
Laufen1’324198428.7%26.2%
Frenkendorf1’237198120.5%24.2%
Biel-Benken1’17519877.7%32.1%
Füllinsdorf1’071197415.4%20.4%
Birsfelden949195560.9%11.1%
Pfeffingen84919865.9%22.5%
Zunzgen848198517.0%14.5%
Oberdorf (BL)827197431.8%18.7%
Ormalingen729198719.1%25.7%
Hölstein726198419.8%25.1%
Itingen725198817.0%33.9%
Röschenz691198918.2%28.9%
Zwingen656199119.8%28.5%
Arisdorf629198520.7%30.7%
Diegten626198915.8%28.6%
Ziefen619198631.3%28.4%
Reigoldswil599197036.1%19.4%
Brislach593199315.0%34.7%
Lupsingen593198611.0%28.2%
Duggingen555199115.1%37.8%
Schönenbuch54319877.2%24.5%
Grellingen533198625.7%29.5%
Liesberg526197929.8%20.3%
Seltisberg523198714.1%26.0%
Niederdorf520197727.1%16.9%
Wahlen500199017.2%29.2%
Läufelfingen491197836.5%22.6%
Waldenburg461194957.0%9.5%
Buus427198126.7%27.6%
Langenbruck408196745.1%16.2%
Thürnen376198617.6%25.3%
Maisprach348198627.6%20.7%
Tenniken330197925.2%15.5%
Blauen329198517.9%24.3%
Rothenfluh321197534.0%23.4%
Giebenach31619898.9%34.8%
Wintersingen316197442.1%17.7%
Dittingen309198023.3%23.3%
Bretzwil302197631.5%21.9%
Wenslingen299197439.8%19.1%
Rünenberg298198034.9%23.8%
Ramlinsburg296199216.9%26.4%
Böckten294198426.9%29.6%
Arboldswil276198030.8%30.4%
Bennwil273197833.0%27.1%
Lampenberg264198024.6%28.0%
Buckten262198030.5%20.2%
Diepflingen261199614.9%42.5%
Augst251197139.4%20.3%
Tecknau247198325.1%15.8%
Eptingen236196946.2%15.7%
Zeglingen233196945.1%27.0%
Oltingen222197542.8%25.2%
Känerkinden220198414.1%22.7%
Rickenbach (BL)220198529.5%28.2%
Titterten212197738.2%19.8%
Nenzlingen199198522.1%29.6%
Lauwil183197442.1%20.2%
Wittinsburg178199225.3%35.4%
Rümlingen154198028.6%31.8%
Hersberg148199010.8%35.8%
Roggenburg139198123.0%19.4%
Burg im Leimental137197233.6%24.1%
Anwil13619976.6%39.7%
Nusshof129199324.0%40.3%
Hemmiken125197338.4%20.8%
Häfelfingen109197435.8%24.8%
Liedertswil76198427.6%27.6%
Kilchberg (BL)74199528.4%39.2%

See it on the map

roots colors every parcel by construction year, from deep red for the oldest buildings to pale cream for the newest.

Open the roots map in the canton of Basel-Landschaft

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