Selling property in Aeugst am Albis: no median, low tax

It only shows in the cantonal model, not in sales. The cantonal model puts residential building land in Aeugst at CHF 1,577 per square metre for 2025. In 2015 it was CHF 972.⁷ That is a rise of 62.2 per cent in ten years. Typically the model ranges from CHF 1,125 to CHF 2,260 per square metre.

For the canton as a whole there is a second measure. Residential building land actually sold for a median of CHF 1,742 in 2021 to 2025.⁷ Model value and sale price are produced in different ways. The model value for Aeugst sits CHF 165 below it.

The model only estimates undeveloped land, not your own plot and not the building on it. For a house in Aeugst, the building comes on top, with its age, condition and fit-out. A sale therefore needs two separate figures, one for the land and one for the house. Both can be made traceable with documents.

Affoltern district, to which Aeugst belongs, has enough sales for an official median. In 2025, 217 condominiums changed hands there, at a median of CHF 1,150,000.² In 2015 it was 246 sales, at a median of CHF 847,500. That is a rise of 36 per cent in ten years. The same district shows a 2025 house median of CHF 1,680,000, a rise of 41 per cent since 2015.²

For the Knonaueramt planning region, which also includes Aeugst, the statistics report the same figures as for Affoltern district. District and region are identical here; the region offers no second, independent benchmark.²

A district median is not a price for a flat in Aeugst itself, though. It mixes sales from across the district, from larger municipalities to small villages like Aeugst. What this means for you: the figure serves as a direction for the Knonaueramt, not as a price for your own flat.

The tariff is the same throughout the canton. Aeugst only levies the tax.¹ It rises in steps. The first CHF 4,000 are taxed at 10 per cent, parts above CHF 100,000 at 40 per cent. Ownership then brings a reduction, 20 per cent in the example after 10 full years.

From 20 full years the reduction is highest, 50 per cent. In the example, CHF 55,200 would then be due instead of CHF 88,320.¹ For a purchase over 20 years ago, the market value of 20 years ago may also count. Documented value-enhancing investments reduce the gain further; maintenance alone does not.

Buy a new home to live in, and the tax can be deferred. You must have lived in the old home yourself and replace it in Switzerland.¹ If the new home costs less than the proceeds, the difference is taxable at once. If it costs no more than the old purchase price and investments, nothing is deferred.⁹ And deferred does not mean waived.