Estate agent in Affoltern am Albis: selling your house or flat

Selling in Affoltern am Albis

Affoltern am Albis is the principal town of the Knonau district (Knonauer Amt, known locally as the Säuliamt) and lies between two labour markets: 28 minutes by S-Bahn to Zurich main station (Zürich HB), 16 minutes to Zug. Rudat AG has its office in Baar, sells on both sides of the cantonal border and knows the differences in taxes, notary's office and procedure.

Three starting points shape the sales in Affoltern:

• The detached house with a garden. Their number is shrinking: in 2015 the town counted 1,082 detached houses, in 2025 still 1,029, and in 2023 and 2024 not a single new one was added. Anyone offering a house has little direct competition, but must disclose condition and renovation needs.
• The flat in a more recent development. From 2015 to 2024, 620 flats in apartment buildings (Mehrfamilienhäuser) were built in Affoltern. Here buyers compare floor plan, service charges and renewal fund flat by flat.
• The move into a new stage of life. The house becomes too big, a community of heirs (Erbengemeinschaft) needs a shared figure, see selling as a community of heirs (in German), or a move towards Zug or Zurich is coming up.

It begins with a valuation that also stands up to the buyer's bank.

The market in Affoltern am Albis

In 2025, 22 detached houses in Affoltern am Albis changed hands in open-market sales, at a median price of CHF 1,775,000. Among flats there were 82 sales at a median of CHF 1,129,500, after only 24 the year before. Across the whole district of Affoltern the medians were CHF 1,680,000 (169 houses) and CHF 1,150,000 (217 flats), in the canton CHF 1,590,000 and CHF 1,200,000. According to the Statistical Office of the Canton of Zurich (Amt für Statistik und Daten) the figures are provisional. For 2024 the canton publishes no house median for Affoltern because fewer than 15 sales were recorded: a single year says little here.

Over ten years the direction is clear. Flats in Affoltern cost a median of CHF 820,000 in 2015 and around 38% more in 2025; in the district the house median rose from CHF 1,195,000 to CHF 1,680,000.

Demand is growing with it: at the end of 2025, 12,866 people lived in Affoltern, 10% more than in 2015, in 5,711 private households. On 1 June 2026, 27 dwellings were vacant, a vacancy rate (Leerwohnungsziffer) of 0.45%, lower than in the district (0.75%) and in the canton (0.52%).

What makes Affoltern am Albis special

Affoltern am Albis has been the district capital since 1837 and a town since 1 July 2018. The municipal area covers 1,059 hectares, with the centre around the station and the Marktplatz and the village of Zwillikon to the west. Its neighbours are Aeugst am Albis, Hedingen, Stallikon, Ottenbach, Obfelden, Mettmenstetten and Jonen in the canton of Aargau.

• Rail: Since 1864 Affoltern has been connected to the Ämtler railway line from Zurich towards Lucerne. In the morning peak the S5 and S14 run four times an hour directly to Zürich HB (28 to 29 minutes), and the S5 runs every half hour to Zug (16 minutes). You reach Baar in 23 minutes with a change in Zug.
• Motorway: The Affoltern junction of the A4 lies south-west of the centre, already within the municipality of Obfelden. The A4 through the Knonau district has been open since November 2009 and leads to Zürich-West and across the cantonal border to the Blegi junction in the Canton of Zug.
• Taxes: The municipal tax multiplier (Steuerfuss) for 2026 is 122% of the simple state tax, 101% for the town and 21% for the secondary school district. On top of that comes the cantonal tax multiplier of 95%.

How Rudat AG sells in Affoltern am Albis

Rudat AG works from Baar and knows the district of Affoltern from a sale of its own in Wettswil am Albis. Conrad Rudat leads every mandate personally, from the first conversation to notarisation.

The figure first. We value with the IAZI/CIFI models used by Swiss banks (methods (in German)) and check on site what no model sees: condition, land register (Grundbuch), building regulations and, for condominium flats (Stockwerkeigentum), the regulations and the renewal fund. We also calculate the property gains tax (Grundstückgewinnsteuer) in advance, so that you know your net proceeds. For a first estimate, use the Zurich property gains tax calculator.

Then the stage. Your house receives professional photography and drone images, a walk-through 360° tour (Matterport) and its own sales documentation showing location, cadastral plan and floor plans. The travel times to Zurich and Zug belong on the first page.

Evidence rather than promises. For building land (Bauland) in Wettswil am Albis, Rudat AG found new investors within half a day (12 hours); the plot is sold (references (in German)). Rudat AG also handles the sale of the penthouse in Wettswil am Albis, a panoramic residence of 252 m². Our clients rate Rudat AG 5.0 stars on Google (26 reviews).

Through to the notary's office. The sale contract is notarised by the Notariat, Grundbuch- und Konkursamt Affoltern, the notary's, land registry and bankruptcy office at Sagistrasse 8b. Taxes and fees at a glance: Selling property in the canton of Zurich (in German). For a first conversation you can reach us on +41 41 763 33 66.

This text is no substitute for tax or legal advice; on request we involve a fiduciary and the notarising officer.

Conrad Rudat · reviewed on 28 September 2026Owner of Rudat AG, estate agent in Baar ZG. Values with the IAZI/CIFI models and guides you through to notarisation.