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The company

Two people who love property,who made it their trade.

Before it was a company, Cosy'Part was the same idea in two heads, with neither of them knowing it.

A pair of keys hanging from a hook on a wooden door
It started with a set of keys

Younes and Lounès met with the same leaning: property, and the conviction that a badly run home is wasted work for everyone. Separately, without ever mentioning it, each was circling the same plan — build something that would genuinely take the whole subject off owners' hands, not on paper. The day they realised it, the question was no longer whether to do it, but with whom. The answer was sitting opposite.

They started in Annemasse, minutes from the Swiss border, by signing the leases in their own names. Paying the owner rent every month, whether the property was full or empty. Fronting the furnishing costs, banking the peak seasons and absorbing the quiet ones. That is where you learn what a badly organised turnover actually costs, what continuously adjusted pricing actually returns, and how much local regulation can change the equation from one property to the next.

One rule survives from that period, and it still holds: we look after an owner's property as if it were our own. Upkeep first — a home degrades quietly, and nobody warns you. Income second: we chase it with the same obsession as if the money landed in our account. That isn't a sales posture, it is simply how we learned to work where it is our own money on the line.

The rest follows. An owner who sees their property treated that way hands us a second, then a third. Some introduce us to other owners they know. It is the only growth we believe in: slow, built on trust, without ever having had to convince the same person twice.

It is also why we turn properties down. If a property is badly located, poorly insulated, or sits in a council that has tightened its rules to the point of making the operation impossible, we say so rather than getting a signature. It's less profitable in month one. It's the only way to last.

What we will nottrade away.

Hover a value — or tap it

We say no

A property that doesn't stack up, we don't take. An owner who'd earn more managing alone, we tell them. Losing a deal costs less than running a property that doesn't work.

Two partners

Cosy'Part is run by its two founders. You speak directly to whoever decides, not to a customer service desk.

Welcome tray in a bright living room: keys, tea and a handwritten note

Your property, our responsibility.

Why us

What it changesfor you.

The real question isn't who we are, it's what you get out of it. Here are the four answers we give an owner before they sign.

You get your time back

Listings, prices, messages at all hours, cleaning turnovers, Sunday emergencies: all of it leaves your week. What's left for you to do is read a statement.

You know exactly what you receive

One fee, agreed up front, with no hidden margin on cleaning or on tradespeople. You get the original invoice, and the arithmetic is redone line by line the moment you ask.

Your property comes back in better shape

What breaks gets fixed now, not at the next visit. A property inspected at every turnover doesn't age like one that gets opened once a year.

You are never locked in

The platform accounts stay in your name, you block whichever dates you want, and if you leave, you leave with the listing, the photographs and the history.

What makes us different

We are nota middleman.

Most management companies carry no risk at all: they collect a percentage, and an empty property costs them nothing. Cosy'Part signs the leases in its own name and puts its own money on the line. When we get a price or a season wrong, we pay for it ourselves.

That's why we turn properties down. If a flat is badly located, poorly insulated or sits in a council area that's too restrictive, we'll tell you rather than get you to sign.

We take the risk before we offer it to you

Nothing we sell was dreamt up in a meeting. We run it first on the properties we operate ourselves, at our own cost.

Every property has someone following it

No property gets lost in a portfolio: each one has a named contact who knows its history, its guests and its weak points. The team grows at the pace of the properties entrusted to us, never the other way round.

Our method was proven on a demanding market

Annemasse, Geneva, the Lake Geneva basin: a year-round clientele of work assignments and relocations that most national operators don't know how to serve. What you learn there — reading local demand, adjusting a price, keeping up with rules that keep changing — transfers to any French town, and that is exactly what we do for the properties we take on elsewhere.

The written commitment

We work for the long run.

  • A first term agreed together, written into the contract
  • Renewed for a longer term if you are satisfied
  • Notice in every case — its length is set in the contract, by plan and by property
  • Under full management, you walk away with your accounts, your photography and your review history

Some owners hand us a second property, then a third. It is the only satisfaction metric we really believe in.

Where we set the bar

The standard we aim for,on every property.

Light, warm materials, nothing superfluous. A place that gets booked is decided before the first listing goes up.

Our properties

What we runtoday.

Three properties under management in Annemasse, minutes from the Swiss border. We'd rather show what we actually do than a portfolio borrowed from a stock library.

The Cosy'Part cleaning team at work in an Annemasse property
Folded white towels and fresh linen prepared for guest arrival
Living room of a managed flat: light sofa, warm wood and natural light
Bedroom with a neatly made bed, white linen and a wooden bedside table
Fitted kitchen in a Cosy'Part property, with clear worktop
Shower room in a managed flat, pale tiling and discreet storage

Next step

Tell us where your property is.We'll tell you what it can earn.

A costed study, specific to your property and your local council. You get it within 48 working hours. Do whatever you like with it, including nothing.

Free. No commitment. No automated follow-ups.