Buy building land in the canton of Appenzell Ausserrhoden: undeveloped plots
In the canton of Appenzell Ausserrhoden, the official geodata analysed show 382 undeveloped plots in building zones across 20 municipalities (data retrieved 11.11.2026).
Of these, 202 plots carry the mark «Aerial image checked: nothing noticeable». On the evaluated aerial image (swisstopo, flight year 2025), no building and no installation was detected on the plot (except small structures under 12 m²), and no building of 12 m² or more is recorded in the official cadastral survey (status 03.11.2026). Trees and shrubs are possible; in this evaluation, vegetation does not lead to the classification «to be clarified on site». The check is automatic, on our own infrastructure. Every plot is checked on the aerial image and in the official cadastral survey. In two randomly drawn samples of 150 plots each, separate image evaluations supported the finding in 86 to 95 % of cases, depending on the counting method (status 04.11.2026; method: bauland-scout.ch/en/methode.html). The mark is an indicative value and does not replace a site visit or information from the building authority.
Appenzell Ausserrhoden wraps around its sister canton in a band of green hills, from the Hinterland through the Mittelland to the Vorderland with its views of Lake Constance. The government sits in Herisau, the courts in Trogen, and German is spoken throughout. Scattered farmhouses and linear villages are typical, and building zones usually extend from the village centres. Your building land search in the canton of Appenzell Ausserrhoden relies on cadastral survey and zoning data from geodienste.ch, accurate to the individual plot. To find building land, you see undeveloped plots identified in the official data we analyse, whether or not they are advertised. Next steps lead to the municipal building authority and the land registry office.
The pages for individual municipalities are in German.
- Bühler: 7 plots
- Gais: 11 plots
- Grub: 9 plots
- Heiden: 39 plots
- Herisau: 60 plots
- Hundwil: 4 plots
- Lutzenberg: 19 plots
- Rehetobel: 20 plots
- Reute: 10 plots
- Schönengrund: 7 plots
- Schwellbrunn: 9 plots
- Speicher: 25 plots
- Stein: 7 plots
- Teufen: 39 plots
- Trogen: 12 plots
- Urnäsch: 20 plots
- Wald: 8 plots
- Waldstatt: 14 plots
- Walzenhausen: 40 plots
- Wolfhalden: 22 plots
Official federal map viewer
Bauland-Scout brings together official geodata and filters out the undeveloped building zones. It does not replace the cantonal geoportal (GIS) or the PLR cadastre: legally binding extracts, the zoning plan and certified cadastral extracts (cadastral surveyor or land registry office) are available from the official authorities.