Selling property in Diepoldsau: new centre with senior flats

Anyone selling in Diepoldsau will find no official price figure. The Canton of St. Gallen keeps no median prices by municipality; the Canton of Zurich does. Portal values for Diepoldsau rest on offers, not on completed sales.

What is on record is the stock: Diepoldsau has 1,704 buildings with residential use in the Rheintal constituency. 1,245 of them are single-family houses, or 73.1%. The cantonal figure is 59.2%. Diepoldsau ranks 5 of 13 in the Rheintal constituency. In total, Diepoldsau has 3,089 dwellings. 46.9% were built before 1981, against 58.9% in the canton. 9.6 hectares of 204 hectares of building zone are undeveloped, or 4.7% (as of 2022). For the share of undeveloped zone, Diepoldsau ranks 56 of 75 in the canton.

For a single house in Diepoldsau, location, plot, age and condition count, measured against comparable sales. You receive a written price range with its reasoning in the free assessment.

Diepoldsau is rebuilding its village centre. On 18 June 2023, residents approved spending of around CHF 37 million on the scheme.¹⁴ On the former post-office site, a building with a restaurant, a hall seating about 400, guest rooms and senior flats is going up. A new school building with after-school care and a commercial building with a bakery and dental practice complete the scheme. A shared underground car park with 56 spaces links all four buildings. Work began in August 2024, with completion due in mid-2026 or early 2027.¹⁴

At the same time, the municipality is overhauling its zoning rules. On 22 September 2026, the council enacted changes to the zoning plan and building code. These are on public display until 18 November 2026.¹⁵ It then plans to rule on the remaining objections and put the proposal to an optional referendum.¹⁵ Diepoldsau has one of the higher shares of single-family houses in the canton. Anyone selling now sells under the zoning rules still in force.

In Diepoldsau, 800 of 1,704 buildings with residential use date from before 1981. That is 46.9%. Among the 75 municipalities in the canton, that is rank 59, counting from the highest share. In the Rheintal constituency: rank 10 of 13. Diepoldsau therefore has a lower share than the canton at 58.9%. Compared with Diepoldsau, the figure in Altstätten is 59.7%.

In Diepoldsau, oil or gas heats 991 buildings with residential use, 58.2%, against 50.0% in the canton. Among the 75 municipalities in the canton, that is rank 20, counting from the highest share. For many owners in Diepoldsau, the heating is therefore a topic.

Records of heating, roof and windows therefore belong in the sale documents for Diepoldsau. For owner-occupied homes in Diepoldsau, the imputed rental value and the maintenance deduction end on 1 January 2029.¹ Whether a renovation in Diepoldsau still pays off first is covered in Renovate or sell.

Diepoldsau has 6,933 residents. 1,295 of them, 18.7%, are 65 or older, against 19.9% in the canton. Among the 75 municipalities in the canton, that is rank 50, counting from the highest share. In the Rheintal constituency: rank 6 of 13. Compared with Diepoldsau, the figure in Altstätten is 19.8%.

On 1 June 2026, 27 homes in Diepoldsau were empty, 0.87% of the stock, against 1.16% in the canton. Among the 75 municipalities in the canton, that is rank 39, counting from the lowest vacancy. The rate for Diepoldsau covers rented and owner-occupied homes, not the supply of houses.

The municipal tax rate of Diepoldsau is 85%. Among the 75 municipalities in the canton, that is rank 8, counting from the lowest tax rate. How Diepoldsau compares for the same income and wealth is shown in the municipality atlas. By public transport, Zurich HB is 117 minutes away from the Diepoldsau, Dorf stop, with 2 changes.

The canton taxes the gain on sale, price minus costs, on a progressive scale.² After more than 15 years of ownership, the tax falls yearly, by up to 40.5% if you lived there 15 years or more.² This applies to the gain up to CHF 500,000; otherwise the cap is 20%.² Within 5 years, the tax rises.²

Selling a home you lived in permanently and exclusively can defer all or part of the tax.³ You buy a similarly used home in Switzerland from 1 year before to 3 years after the sale.⁴ Deferred does not mean waived.³

The buyer owes a 1% transfer tax (Handänderungssteuer) on the price.⁵ The seller is jointly liable; between parents and children, half the rate applies.⁵

The municipal land registry where the property lies notarises the sale contract.⁶ The registry fee is 0.2% up to CHF 2 million, 0.05% above.⁷ If the land registry also notarises the contract, the fee doubles.⁷