On this page
- Why does the median flat in Geroldswil cost more than the median house?
- What remains if you move from a house to a flat in Geroldswil?
- How much tax is due on selling a house in Geroldswil?
- What applies to the value capture levy in Geroldswil?
- What matters in Geroldswil besides the price?
- Estate agent in Geroldswil
- Frequently asked questions
- Nearby
Suppose you are planning the obvious step. Sell the house, buy a flat without stairs in the village and gain some breathing space with the rest.
In Geroldswil the official figures for 2025 show the reverse picture. A house cost a median of CHF 1,500,000. A condominium cost CHF 1,905,000. Among all 160 Zurich municipalities, 46 have both values; nowhere else is it like this. If you want to downsize here, calculate first and search second.
And what does that mean if you then want to buy a flat in the village?
Worked example
Worked example, Geroldswil: house, 18 years of ownership
Assumption: bought in 2007 and sold in 2025, each at the Geroldswil median for houses, without investments, costs or replacement purchase.
- Sale price (median 2025, provisional)
- CHF 1,500,000
- Purchase price (median 2007)
- – CHF 1,115,000
- Property gain
- CHF 385,000
- Tax per tariff, before reduction
- CHF 143,400
- Reduction for 18 full years: 44%
- – CHF 63,096
- Property gains tax
- CHF 80,304
- Remaining after tax, before mortgage
- CHF 1,419,696
Why does the median flat in Geroldswil cost more than the median house?
The data do not say. They only show what was sold. The median is the value in the middle of a year’s price list.2 In 2025, 16 flats and 17 houses were sold on the open market. A median is only published from 15 sales, so both figures are just above that.
With so few sales, the mix shapes the result. If many of the flats were new or large and the houses rather older, exactly this picture can arise. For 2015 there is no median for either, and none for flats in 2007 either. A trend therefore cannot be read off.
What this means for you: do not read the figure as a rule. It does not mean that every flat in the village costs more than your house. It means that you should assess your house and the flat you are looking for separately.
What remains if you move from a house to a flat in Geroldswil?
In the median comparison, no capital is left over; the flat costs more. Whether that applies to you depends on the two properties, not on the median. A smaller or older flat can be considerably cheaper, a well-kept house worth more.
On tax, the move can help. If you lived in the house yourself and buy another owner-occupied home in Switzerland, the property gains tax can be deferred.1 If the new flat costs as much as the proceeds or more, the whole tax can be deferred. If it costs less, the difference is taxable at once. If it costs no more than your house once did, including investments, there is no deferral.11 Deferred does not mean cancelled.
What this means for you: calculate in this order. Proceeds from the house, tax or deferral, price of the flat, cost of the move. Only then do you know whether the move frees up money or needs money.
| Indicator | Geroldswil | As of |
|---|---|---|
| Median house price (17 sales) | CHF 1,500,000 | 2025, provisional |
| Median condominium price (16 sales) | CHF 1,905,000 | 2025, provisional |
| House / flat (10 / 7 sales) | no median, under 15 sales | 2015 |
| Residential building land per m² (cantonal model) | CHF 2,260 (2015: CHF 1,283) | 2025, provisional |
| Residents, of whom 65 and over | 5,384, of whom 1,034 (19.2%) | 2025 |
| Tax rate municipal / total, excl. church | 112% / 207% | 2026 |
| Bus from Geroldswil, Zentrum to Zürich HB | from 23 minutes (bus 301, 1 change) | October 2026 timetable |
| Municipal value capture levy | 30% of the gain in value minus CHF 100,000 | in force since 01.09.2024 |
How much tax is due on selling a house in Geroldswil?
In the median example, CHF 80,304. The house median was CHF 1,115,000 in 2007 and CHF 1,500,000 in 2025.2 That is 35 per cent more in 18 years. Across the canton, it rose from CHF 780,000 to CHF 1,590,000 over the same period, more than doubling.
The smaller gain keeps the tax small. It takes 20.9 per cent of the CHF 385,000 gain, but only 5.4 per cent of the sale price.1 The canton sets the same tariff for all municipalities; Geroldswil only levies the tax. After 20 full years of ownership the example would come to CHF 71,700.
The calculation uses your own purchase price, though, not the median. Documented investments that added value reduce the gain further, such as an extension. What this means for you: in the median example, the tax is not the biggest question here. The bigger one is what you get for the house and what the next flat costs.
What applies to the value capture levy in Geroldswil?
Since 1 September 2024, Geroldswil has charged its own levy: 30 per cent of the gain in value minus CHF 100,000.6 As a rule, plots under 1,200 square metres are exempt; cantonal law permits no smaller exempt area.7
It only concerns added value from upzoning or rezoning, meaning extra building potential. It falls due on development, not on a sale.8 If you sell earlier, the buyer bears the obligation, and that belongs in the sale contract.7
What matters in Geroldswil besides the price?
Geroldswil has 5,384 residents, 1,034 of them aged 65 or over, 19.2 per cent.4 Geroldswil has no railway station. From the Geroldswil, Zentrum stop the journey to Zürich HB takes from 23 minutes, by bus 301 towards Dietikon with one change.5
The tax rate is 112 per cent, 207 per cent including the canton.3 On the same income, Unterengstringen means about 5 per cent less cantonal and municipal tax, Dietikon about 4 per cent more. The cantonal model puts residential building land at CHF 2,260 per square metre, 76.1 per cent more than in 2015.9 In 2025 a house cost a median of CHF 3,229 per square metre of plot, building included.2
Before you look for a flat, I work through both sides with you: what your house brings, what remains after tax or deferral and what the next flat may cost. Without sales pressure.
Prefer to talk? +41 76 325 11 95 – you speak directly with Dominik Devaja.
Estate agent in Geroldswil
Selling in Geroldswil with Immosmile: four phases, one contact person
I support sales throughout the Canton of Zurich, including Geroldswil. Through all four phases you have one contact person: me, Dominik Devaja, managing director of Immosmile. You pay nothing beforehand. Our fee falls due only when you sign the contract at the notary (Beurkundung).
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Clarity
Independent valuation, net calculation after taxes and costs, a look at what comes after. You decide on figures, not on hearsay.
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Preview
Before anyone sees your house, film, photography and exposé are produced. Then we show it to vetted buyers first – not yet on the portals.
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Market decision
You receive the demand report and every offer immediately. Then you choose the path to the best price: accept, bidding round – or the broad public phase on the portals, the normal case.
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Completion & move
Notary appointment, key handover, documents for what comes after – and, if you wish, guidance into your next home. Our fee only falls due now, with the notarised deed.
The full process in detail What is your property in Geroldswil worth?
What else do owners in Geroldswil ask?
How do I find the right estate agent in Geroldswil?
Ask how the price is derived and what remains after tax and costs. I handle sales across the whole Canton of Zurich. What else to check in a first meeting is set out in the 12 checking questions.
Is a flat in Geroldswil really more expensive than a house?
In the 2025 median, yes. It says little about individual properties, because the two medians rest on only 16 and 17 sales. Which flat and which house you compare is what decides.
By when must I declare the property gain?
Within 30 days of the transfer, you file the property gains tax return with the Geroldswil municipal tax office. A longer deadline is available on request.
Nearby
Selling property in neighbouring municipalities
Sources
- Tax Act of the Canton of Zurich (StG ZH, LS 631.1), §§ 205, 216(3)(i), 219, 221, 225, 226 (Nachtrag 132), in German · as of 1.4.2026, retrieved 15.10.2026
- Canton of Zurich, Office for Statistics and Data: Freihandverkäufe von Immobilien inkl. Medianpreisen seit 2007 (KTZH_00000077) · data as of 2025/Q4, 2023–2025 values provisional, retrieved 15.10.2026
- Canton of Zurich, Statistical Office: municipal tax rates 2026, in German · as of 24.03.2026, final
- Canton of Zurich, Statistical Office: population by municipality and age (KTZH_00000254) · year 2025, retrieved 15.10.2026
- SBB online timetable: Geroldswil, Zentrum – Zürich HB, fastest connection departing 09:00–09:59 · October 2026 timetable, queried for 20 and 22.10.2026
- Geroldswil building and zoning regulations, art. 32c on the value capture levy (ruling ARE KS 0091/24 of 29.04.2024, in force since 01.09.2024), in German · retrieved 15.10.2026
- Value Capture Act of the Canton of Zurich (MAG, LS 700.9), §§ 6, 19, 20, in German · retrieved 09.10.2026
- Value Capture Ordinance of the Canton of Zurich (MAV, LS 700.91), § 21, in German · retrieved 09.10.2026
- Canton of Zurich, Office for Statistics and Data: Immobilienpreise im Kanton Zürich (KTZH_00003158), residential building land, model value by municipality in CHF/m², in German · data as of 2025/Q4, 2022–2025 values provisional, retrieved 15.10.2026
- Government Council, Canton of Zurich: RRB No. 42/2026, cantonal tax rate 2026 (95%), in German · dated 14.01.2026
- Cantonal Tax Office Zurich: Zurich Tax Manual No. 216.3, replacement purchase, paras 19–25, in German · as of 1.2.2018, retrieved 29.09.2026
General information without guarantee, not individual advice. The law, the tax assessment and advice from professionals for your situation are what count. Terms of use
