6'900'000
8 room Maisonette in Cologny
CHF6'900'000
Description
Cologny?Exceptional Duplex
Behind a discreet facade, a spectacular duplex with rare volumes is revealed, entirely renovated in a resolutely contemporary spirit.
Bathed in light thanks to its large openings and impressive ceiling heights, the apartment offers a unique atmosphere, close to that of a contemporary house suspended above the greenery.
Developed over two levels, this exceptional property features vast reception areas in a row, including an impressive double living room, a fireplace area, an elegant dining room, and a superb fully equipped kitchen designed as a true place of life and conviviality.
The carefully selected materials – marble, custom-made woodwork, and high-end finishes – reinforce the exclusive and refined character of the whole.
The night area welcomes four elegant private suites offering comfort, intimacy, and numerous storage spaces.
A beautiful terrace benefiting from unobstructed views of the countryside and mountains, a cellar, and two indoor double boxes complete this rare property located in one of the most sought-after addresses in Cologny.
Property Details
- Property type
- Maisonette
- Living space
- 368 m²
- Rooms
- 8
- Last renovated
- 2020
- Published on
- 29.10.2026
Features
Mentioned in the description
Price
- Purchase Price
- CHF 6'900'000
- Price per m²
- CHF 18'750
Location
1223 Cologny
Nearby
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Neighbourhood
Poor public transit
ARE transit class D — a car is needed for most trips.
Mostly built-up
96% built-up area within 500 m.
Quiet neighbourhood
Small and larger households · around 15 people in the neighbourhood.
Municipal tax multiplier
25 %
Lower than 99% of municipalities in the canton
ESTV · 2026
CHF 12'184 income tax a year · Single person without children, gross wage CHF 100'000
- 24.9 Rp/kWh
Noise & quiet40 dBDay
Road and rail noise in the surroundings
Calculated from the federal noise model: the mean over the hectare (100 × 100 m) of the surroundings, model year 2021.
Night
31 dB
Loudest source
Road
Calculated level, placed on a scale of everyday sounds.
Environment
Air within the Swiss limits
At least one pollutant is above its WHO guideline; all meet the Swiss limit.
Radon: class up to 1%
The federal radon map estimates that at most 1% of the buildings here exceed the reference value of 300 Bq/m³.
Connectivity
Fibre in parts of the surroundings only
In at most 10% of the buildings around
5G outdoors
In the network models of 3 operators.
Mobile: as of 2026













