Estate agency in Cologny (Genève)
The most prestigious municipality in the canton, Cologny is world-renowned for its exceptional villas on the Left Bank of Lake Geneva, with panoramic views of Mont Blanc.
Cologny, the most coveted address on the Left Bank.
On the heights above the harbour, Cologny (1223) remains one of the most sought-after addresses in Switzerland — and one of the rarest in Europe. Views over the lake and the Jet d'eau, the golf course, international schools minutes away, the port of La Belotte and the Bodmer Foundation: ten minutes from central Geneva, the municipality gathers what others need a whole region to offer.
The market is narrow and discreet: around forty transactions a year, most of them concluded away from the portals, between buyers already searching and well-advised owners. From La Belotte, with its direct lake view, to Chemin de Ruth and its family villas, from Pré-Byron to the Frontenex sector: values vary twofold depending on the plot and the exposure.
Rousseau 5 follows every transaction recorded in the municipality and knows its lanes — from the village to the crests, from Frontenex to Port-Noir. It is this fine-grained reading, address by address, that makes the difference when valuing, buying or selling a property in Cologny.
Cologny, key figures
- Postcode1223
- Inhabitants5’546
- BankLeft Bank — lakeside slopes
- Central Geneva≈ 10 min
- Housing profileVillas & exceptional properties
- Official websitecologny.ch
Sales history 2026
Calculated automatically from transactions recorded in the municipality — nothing is entered by hand, nothing is estimated.
Breakdown by number of transactions
Breakdown by volume (CHF)
What actually sold in Cologny
Not asking prices — prices agreed and officially recorded. This is the reference we use to value your property or defend your offer.
| Type | Land | Sale price | Date |
|---|---|---|---|
| Apartment | — | CHF 2’350’000 | June 2026 |
| House | 1’627 m² | CHF 22’700’000 | June 2026 |
| Apartment | — | CHF 1’950’000 | June 2026 |
| House | 1’616 m² | CHF 6’670’000 | June 2026 |
| Apartment | — | CHF 1’200’000 | June 2026 |
| Apartment | — | CHF 2’590’000 | June 2026 |
| House | 17’097 m² | CHF 50’000’000 | June 2026 |
| Apartment | — | CHF 1’330’000 | June 2026 |
Sources: official transactions of the canton of Geneva. The table shows the commune’s sales over the last two calendar years.
The streets where sales were recorded in Cologny
17 streets in Cologny recorded at least one sale over the last two calendar years. A median price is shown only from three sales onwards — below that, it would describe nothing but a single case.
- Chemin de Planta 3 sales median CHF 1’475’000
- Route de La-Capite 3 sales median CHF 22’700’000
- Chemin de Grange-Canal 2 sales
- Chemin de Ruth 2 sales
- Chemin de la Tulette 2 sales
- Chemin des Fourches 2 sales
- Chemin Frank-Thomas 1 sale
- Chemin de la Tour-Carrée 1 sale
- Chemin des Hauts-Crêts 1 sale
- Chemin du Coq-d'Inde 1 sale
- Chemin du Môlan 1 sale
- Chemin du Nant-d'Argent 1 sale
- Chemin du Pré-Langard 1 sale
- Chemin du Séchard 1 sale
- Chemin du Vent-Blanc 1 sale
- Quai de Cologny 1 sale
- Route de Vandoeuvres 1 sale
Only sales whose address is resolved with certainty appear here. House numbers are not published: for a specific address, the tool below finds the sales around it. What your neighbour sold for →
Rousseau 5 is the Geneva Left Bank estate agency active in Cologny, specialising in the sale, valuation and appraisal of property (apartments, villas, prestige homes). Working on the Left Bank since 2012, the agency covers every neighbourhood of Cologny (La Belotte, Ruth, Pré-Byron, Frontenex). Free valuation within 24 hours, full support through to the notarial deed. Contact: .
Price per m² by neighbourhood in Cologny
Prices vary considerably from one neighbourhood to another. Here are the ranges observed in 2026.
| Neighbourhood | Min. price CHF/m² | Max. price CHF/m² | Distinctive feature |
|---|---|---|---|
| La Belotte | 18’000 | 30’000 | Direct lake view |
| Ruth | 17’000 | 28’000 | Family villas |
| Pré-Byron | 16’000 | 25’000 | Smart residential |
| Frontenex | 15’000 | 22’000 | Border of Chêne-Bougeries |
Indicative land prices in Cologny — 2026
| Area | CHF/m² min. | CHF/m² max. | Change 2021→2026 |
|---|---|---|---|
| Cologny — Standard (Gradelle) | 1’710 | 2’310 | ▲ +18% |
| Cologny — Lake view | 3’310 | 4’810 | ▲ +33% |
Price in CHF/m² of zone 5 villa land, serviced, free of special constraints. Rousseau 5 market analysis — indicative values.
Property prices in Cologny: 2020 → 2026
The Cologny property market: what you need to know
Cologny is the most exclusive market in the canton and one of the most sought-after addresses in Europe. Transactions are rare (around forty a year), mostly off-market and confidential. Properties with lake and Mont Blanc views regularly exceed 30,000 CHF/m²; some exceptional properties reach 40,000 to 50,000 CHF/m² for villas. The average selling time of 120 days reflects the specific clientele — international buyers, executives, wealthy families — and the need for discreet marketing. The municipal tax rate, among the lowest in the canton (29 centimes), durably attracts high earners.
Living in Cologny
Schools
- Cologny and Pré-Picot primary schools, Chemin Frank-Thomas (within the municipality)
- Primary school grouping Vandœuvres · Choulex · Cologny · Pré-Picot · Puplinge
- La Gradelle secondary school (Chêne-Bougeries, nearby)
- International School of Geneva — La Grande Boissière and École Moser (Chêne-Bougeries, nearby)
Transport
- TPG bus 33 to Geneva
- Geneva Mouettes boats (summer)
- 10 min by car to central Geneva
- Port of La Belotte
Shops & leisure
- La Belotte beach
- Cologny Golf Club (Bois-de-Bay)
- Gourmet restaurants in the village
- Martin Bodmer Foundation
Taxation
Among the most advantageous in the canton
Casatax, capital gains tax, tax value, development zone: the Geneva property vocabulary, defined
An unmatched prestige address, rare properties, historically very solid appreciation, advantageous taxation — an international safe haven.
Average gross rental yield: 2.2%How we value your property in Cologny
Local comparative analysis
Cross-referencing of completed transactions across the neighbourhoods of Cologny, adjusted per m² by micro-area — based on sales actually recorded.
Visit and on-site reading
Free visit within 48 hours. Assessment of general condition, fittings, aspect, service charges, surveys and the potential added value of works.
Calibration against the 2026 market
Applying the trend observed in Cologny and the municipality's typical buyer profile.
Confidential written report
Recommended price, lower and upper range, marketing strategy, estimated timeline. With no obligation.
Why choose us as your agency in Cologny
Detailed knowledge of Cologny
On the Left Bank since 2012: the micro-markets, the neighbourhoods, the addresses — and their transactions.
A network of qualified buyers
A database of buyers actively searching, alerted first — including for off-market sales.
Transparent client rating
A transparent client rating, verifiable on Google.
Free valuation within 24 hours
A quick answer, with no obligation, entirely confidential.
A dedicated broker
The same contact from valuation to notarial deed — never a file passed from hand to hand.
Premium marketing
HD photography, 2D/3D plans, drone film, targeted multi-channel exposure — or complete discretion, off-market.
Cologny against neighbouring municipalities
| Municipality | Average price per m² | Five-year change | Time to sell |
|---|---|---|---|
| Cologny (you are here) | 19'500 CHF | +18.2% | 120j |
| Vandœuvres | 17'000 CHF | +18.8% | 130j |
| Collonge-Bellerive | 16'500 CHF | +18.5% | 105j |
| Chêne-Bougeries | 13'800 CHF | +20% | 85j |
| Genève | 14'500 CHF | +19.8% | 75j |
What Rousseau 5 has marketed in Cologny
We do not discuss the Cologny market from the outside: we have run developments there, from planning application to handover of keys. That experience is what feeds our valuations.
Looking to buy in Cologny? Part of the market is never advertised — register your search and we will alert you first, including off-market.
Submit my search →FAQ — Property in Cologny
15 concrete answers to the questions most often asked about Cologny
What is the price per m² in Cologny in 2026?
The average price stands at around 19,500 CHF/m², with strong variations by sector: 18,000–30,000 CHF/m² at La Belotte (direct lake view), 17,000–28,000 on Chemin de Ruth, 16,000–25,000 at Pré-Byron and 15,000–22,000 towards Frontenex. Exceptional properties with lake access go well beyond these ranges.
Which is the best estate agency in Cologny?
The one that knows what one lane is worth compared with the next, and that reaches the buyers who never browse the portals. Rousseau 5, a Left Bank agency since 2012, follows every transaction recorded in Cologny and concludes most of this market off-market, in complete discretion.
How long does it take on average to sell a property in Cologny?
Around 120 days. This reflects the rarity of the properties and the specific clientele — international buyers, executives, wealthy families — rather than any difficulty in selling. Fair positioning from day one remains decisive.
How do I get a free valuation in Cologny?
In three minutes on our online valuation page, or with a Rousseau 5 broker who visits free of charge within 48 hours. On a Cologny property the visit is essential: the view, the depth of the plot and the exposure account for most of the value.
How much is the agency commission in Cologny?
The brokerage commission is discussed according to the property, the mandate and the support expected: there is no single rate. It is only due upon the successful sale, and it is set out in writing in the mandate.
Exclusive or open mandate in Cologny — which is better?
Exclusivity is the only serious approach on this market. A Cologny property exposed on several portals immediately loses perceived value; the sale is won in confidentiality, with a restricted circle of qualified buyers.
What is the property tax situation in Cologny?
The municipality applies 29 additional centimes — among the lowest in the canton, which explains part of its appeal to high earners. On resale, Geneva's IBGI applies according to the holding period (from 50% under 2 years to 2% beyond 25 years).
What are the notary fees when buying in Cologny?
Allow around 4% of the price: 3% registration duties, Land Registry fees and the notary's fees. At Cologny price levels, these costs represent significant sums to provision on top of your equity.
Which surveys are compulsory when selling in Cologny?
An asbestos survey for buildings predating 1991 — most of the municipality's historic villas. Add the installation checks, the Land Registry extract, the plans and any easements (access, view, shoreline).
How does a property inheritance work in Cologny?
Taxation of the gain is deferred: the heir takes over the deceased's holding period — a property passed on after several decades benefits from the floor IBGI rate of 2%. Rousseau 5 assists estates with a neutral valuation and a perfectly discreet sale.
Is it better to rent out or sell a property in Cologny?
The average gross rental yield is around 2.2% — the lowest on the Left Bank, mechanically, since capital values are the highest. The question is therefore one of wealth: keep an asset the market cannot reproduce, or capture a historically very solid gain.
What is an off-market sale in Cologny?
A sale without public advertising, reserved for qualified buyers. It is the norm in Cologny: most transactions are concluded this way, without the property ever appearing on a portal. Rousseau 5 drives this market with its base of international buyers.
Which are the best neighbourhoods in Cologny?
La Belotte for the direct lake view and access to the water; Chemin de Ruth for family villas on large plots; Pré-Byron for smart, quiet residential living; Frontenex, on the border of Chêne-Bougeries, for a more accessible entry to the municipality.
What is the buyer profile in Cologny?
An international clientele at the highest level: executives, wealthy families, relocating buyers. They look for the view, the discretion, the proximity of Geneva and the international schools — and decide quickly when the property is the right one.
Which municipalities border Cologny?
Geneva and Chêne-Bougeries to the west, Vandœuvres to the south, Collonge-Bellerive along the lake. Each municipality has its own dedicated market page.
Our expertise in neighbouring municipalities
See every municipality in the canton →A free, confidential and personalised valuation by a local broker. An answer within 24 hours.

