Off-market property in Cologny

Off-market means selling a property without any public exposure: no portal, no listing, no sign. In Cologny, the most expensive address in Switzerland for primary residences, it is the natural way the top of the market changes hands.

The “billionaires' hill” overlooks the harbour, ten minutes from the Old Town. Fondation Bodmer, quai de Cologny, chemin de Ruth and chemin de Bonnevaux: here, properties change hands between established families, business leaders and family offices — almost never on the portals. Selling or buying in Cologny is first and foremost a matter of network and discretion.

The Cologny market in 2026, in figures

Sources: RealAdvisor, median prices per m², readings from August–September 2026 · UBS Luxury Property Focus 2026 for the prestige segment. Indicative figures — every property deserves an individual valuation.

Two readings: the RealAdvisor median reflects the whole housing stock, while the UBS Luxury Property Focus 2026 study puts Cologny's prestige segment at around CHF 43'000 per m² — the highest in Switzerland for primary residences. The best addresses (Parc-de-Montalègre, Nant-d'Argent, chemin Byron) exceed CHF 30'000 per m² in street medians. No average can replace a valuation based on real transactions in the sector.

Why sell off-market in Cologny

In Cologny, a public listing informs the neighbours, the curious and the competition — in a municipality of 6'000 inhabitants where word travels fast. Buyers at this level do not browse the portals: they go through their private bankers, their lawyers, their networks. Discreetly placing three to five of them in competition builds a better price than exposure, without the social cost of a listing.

The OFFER process: a confidential valuation within 72 hours based on real transactions in the sector, a shortlist of three to five qualified buyers under a non-disclosure agreement, discreet viewings, a controlled competitive process — and a single point of contact through to the notarised deed.

Buying in Cologny without the portals

The finest properties in Cologny are never published. An OFFER search mandate opens the door to that invisible market: your criteria, your financing capacity, and priority introductions to matching properties — before anyone else, in complete confidentiality.

Frequently asked questions

How much is a house in Cologny worth in 2026?

The median house price is CHF 5.12 million, at CHF 22'216/m² (RealAdvisor, September 2026). The prestige segment trades at around CHF 43'000 per m² according to UBS — and 80 % of sales fall between CHF 3.2 and 13.8 million.

Why do Cologny properties sell off-market?

Because sellers and buyers there demand the same thing: discretion. Properties are rare and easy to identify, the wealth involved is significant, and buyers — families, business leaders, family offices — go through their networks rather than the portals.

How do I sell a property discreetly in Cologny?

Through an off-market sale: a confidential valuation within 72 hours, a shortlist of three to five qualified buyers under a non-disclosure agreement, discreet viewings and a controlled competitive process. OFFER runs this process with a single point of contact, from the first conversation to the deed.

Further reading: off-market in Geneva, the Lex Koller guide and our Geneva property gains tax simulator (in French).