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Contact

Honestly,calling is easiest.

Fifteen minutes on the phone is enough to know whether we can do anything for your property. No switchboard, no endless form: you reach one of the two partners directly.

Our two lines

+33 6 95 67 19 41+33 6 09 78 42 69

Numbers shown in international format: some of our calls come from Switzerland, and a French mobile number can't be dialled from abroad without it.

By email

contact@cosypart.com

We reply within 48 working hours, always in writing.

Where we operate

Annemasse · Haute-SavoieLyon · Rhône

Our two operating areas are Annemasse and Lyon. We don't receive visitors there: we come to you to view the property, wherever in France we're working.

  • Lake Geneva and the Alps seen from the hillsides, villages along the shore

    The Geneva basin, from Annemasse

  • The Saône riverbank in Lyon, coloured façades and autumn trees

    Lyon, the Saône riverbank

Views of the two areas we operate from. We don't receive visitors there: we come to you.

Registered office
COSY'PART · 60 rue François 1er, 75008 Paris

About us

Or leave us a message

📸 Photos of the property

Optional, but it changes everything: with photos we come back with a real estimate instead of a range. Inside, outside, whatever you have on hand.

Where we operate

Based in Annemasse and Lyon.Available across France.

Our teams are physically present in the Annemasse area and in Lyon. For a property elsewhere in France, we'll review it and tell you honestly whether we're the right people — or whether you're better off with someone on the ground.

The cross-border market

Annemasse is a market of its own: more than 110,000 people commute to work on the Swiss side, and a furnished one-bedroom costs three times less in Annemasse than in Geneva. Demand for medium-term lets — assignments, transfers, relocations — is constant there, outside the tourist season and outside the night cap. We've been working that market from the start, and it is where our method was built: the same one we apply wherever we operate.

AnnemasseLyon

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