Real estate in Collex-Bossy: prices per m², actual sales and valuation
In Collex-Bossy, the price per square metre of an apartment is 9'136 CHF (official median, range 7'468 – 10'333, Rive droite du lac region); a villa sells there for CHF 1'650'000 median (actual sales). The actual sales from the land register, 28 over the past 12 months (-44 % year on year), are detailed below. To place your property within these figures, the free online valuation gives a first range in a few seconds.Sources: OCSTAT, 2024 vintage · FAO Geneva (official register), 18.04.2024 → 05.06.2026 · updated 2026-07-02
The latest actual sales in Collex-Bossy
Every property transaction in the canton is published in the official gazette (FAO). Here are the latest sales recorded in Collex-Bossy. The price shown is the one actually paid at the notary's, not the one displayed in the listing.
| Date | Type | Price paid | Official notice |
|---|---|---|---|
| 31.03.2026 · 4 months ago | Purchase | CHF 970'000 | 2026/3308 ↗ |
| 31.03.2026 · 4 months ago | Purchase | CHF 1'080'000 | 2026/3306 ↗ |
| 13.03.2026 · 5 months ago | Purchase | CHF 1'525'000 | 2026/2610 ↗ |
| 26.02.2026 · 5 months ago | Purchase | CHF 460'000 | 2026/2031 ↗ |
| 22.12.2025 · 7 months ago | Purchase | CHF 450'000 | 2025/15082 ↗ |
| 15.12.2025 · 7 months ago | Purchase | CHF 760'000 | 2025/14383 ↗ |
41 sales published between 18.04.2024 and 05.06.2026 · anonymous data (date, price, notice reference), nLPD-compliant · source: fao.ge.ch
Rents in Collex-Bossy in 2025
Average monthly rents for free-market homes, excluding charges (Collex-Bossy is part of the communes périurbaines du canton in the cantonal statistics), according to the official survey of May 2025.
| 2 rooms | 3 rooms | 4 rooms | 5 rooms | 6 rooms |
|---|---|---|---|---|
| 1'064 CHF | 1'458 CHF | 1'814 CHF | 2'047 CHF | 2'650 CHF |
OCSTAT, cantonal rent statistics (May 2025), rooms in the Geneva sense (kitchen counted). A rental yield to calculate? Our advisors will work it out with you.
Why these figures differ from the portals'
Two ways of measuring a market coexist: recorded prices (what was signed at the notary's) and estimated prices (what a statistical model calculates). This page uses the former.
Recorded prices
- Sales signed at the notary's and published in the official register (FAO) : 41 in Collex-Bossy over 24 months
- Official ranges by quartiles (OCSTAT, 2024 vintage)
- Regional history published by OCSTAT, every figure verifiable at the source
Estimated prices
- Statistical models (known as “hedonic”): an instant order of magnitude
- Smoothed averages, short history, unpublished methodology
- Useful to get your bearings; insufficient to set an asking price
A model estimates, the register records. Both are useful: we start from the recorded, then an advisor refines according to your property.
Selling in Collex-Bossy: what the tax says
Property gains tax (IBGI). In Geneva, the gain realised on a sale is taxed from 50% (held less than 2 years) down to 2% (25 years and more, scale in force since 2025). The holding period is often the first lever for optimising the timing of a sale. We calculate it with you before any marketing.
The sale also entails notary fees and possible mortgage exit penalties: a full costing avoids unpleasant surprises on the net seller proceeds.
Calculate your tax before selling
Official Geneva scale (LCP art. 84). Instant calculation, nothing is transmitted.
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How much is your property worth, precisely?
The figures on this page give the market. Your floor, your view, your state of repair do the rest. The free online valuation takes a few seconds, with no commitment; an advisor then refines it with the sales signed in your area.
FAQ — real estate in Collex-Bossy
What is the price per m² in Collex-Bossy in 2026?
The median price of an apartment is 9'136 CHF/m², with an official range of 7'468 to 10'333 CHF/m² (OCSTAT 2024, Rive droite du lac region). Over the past 12 months, properties sold in Collex-Bossy (all types) changed hands at a median of CHF 760'000 (-44% year on year), according to the FAO register sales.
How many properties sell in Collex-Bossy each year?
Around 21 sales per year: 41 transactions published in the FAO over the past 24 months, all categories combined.
How much is a house worth in Collex-Bossy?
Over the past 24 months, the villas actually sold in Collex-Bossy (8 sales, FAO register) show a median of CHF 1'650'000.
What is the price per m² of land in Collex-Bossy?
Across land-plot sales of the past 24 months (14 transactions with surface area, FAO register), the price paid per plot works out at a median of 2'760 CHF/m² of land in Collex-Bossy. An indicative figure: it includes any existing buildings on the plot. No official statistics exist at this level; it is a Nessell calculation on signed prices.
What tax do you pay when selling in Collex-Bossy?
The Geneva IBGI, degressive with the holding period: 50% of the gain before 2 years, 2% from 25 years (2025 scale; full exemption has been abolished). The rate is cantonal, identical in every commune. We check the calculation with you before any sale.
Is the housing market tight in Collex-Bossy?
Yes. Collex-Bossy has 1'710 inhabitants (2025, OCSTAT) for only 2 vacant homes recorded as of 1 December 2025. Demand absorbs the roughly 21 sales concluded each year: a structurally tight market, favourable to sellers.
Is it the right time to sell in Collex-Bossy?
The market lends itself to it: prices are holding at a high level (9'136 CHF/m² median) and demand remains liquid (~21 sales per year). The right moment depends above all on your situation: holding period (IBGI), next project, works to amortise. That is what the valuation helps you decide.
I inherited a property in Collex-Bossy: what should I know?
An inheritance requires a documented valuation: for the declaration, the division between heirs and anticipating the tax in the event of a resale. Nessell provides a written appraisal based on comparable sales in Collex-Bossy, and coordinates with your notary if needed.
The market in the neighbouring communes
SOURCES: OCSTAT (statistique.ge.ch), 2024 vintage · FAO Geneva (fao.ge.ch), harvested 2026-07-02 · RegBL (admin.ch). Every figure on this page can be verified at the source.