Le Rosemont is the largest owners’ association on the lower slopes of Mont Boron: 239 lots in a 1960s development at 25 boulevard Carnot, between the port of Nice and the climb up the hill. It is also the most traded building in the area — which makes it one of the rare Mont Boron addresses where comparables are not in short supply, for a seller as much as for a buyer.
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Le Rosemont in brief
The address
Boulevard Carnot is the line of the Basse Corniche: it leaves the port of Nice and follows the southern flank of Mont Boron towards Villefranche. At number 25 you are still in the city — the shops of the port and the Riquier quarter a few minutes away, a bus stop at the foot of the building — while enjoying the aspect and the open outlook of the lower hill.
A large 1960s development
The national register of owners’ associations records 239 lots for a building constructed between 1961 and 1974. That order of magnitude has concrete consequences: fixed charges shared across a large number of lots, structured management, and a steady supply — several apartments change hands here every year.
What you are buying here
A position on the lower hill, halfway between the life of the port and the quiet of Mont Boron, in a building that offers choice. It is one of the most accessible ways into the area, without the entry ticket of the ridge addresses.
What sort of apartment will you find at Le Rosemont?
Supply covers a wide spectrum, from the studio of around thirty square metres to the large family apartment. Most lots have a balcony, and parking is common — not a detail to overlook in this area.
What opens the price gaps here: the floor and the outlook — the view frees up as you climb —, the aspect, whether there is parking and the state of renovation, which varies a great deal from one lot to another in a development of this size.
The most recent published sales at Le Rosemont
Here are the three most recent sales published for this address in the official property transaction database.
- October 2025 — €450,000, 57 m², 2 main rooms, 2 ancillary lots sold with it, i.e. €7,833/m².
- August 2025 — €975,200, 78 m², 3 main rooms, 2 ancillary lots sold with it, i.e. €12,439/m².
- July 2025 — €318,000, 51 m², 2 main rooms, 1 ancillary lot sold with it, i.e. €6,256/m².
These figures come from the French public property transaction database (Demandes de valeurs foncières, published by the tax authority), which is fed by notarial deeds and released several months in arrears. The amount shown is the price stated in the deed, before notary fees and transfer duties: depending on whether the agency’s commission was payable by the seller or the buyer, it may or may not be included.
They tell you nothing about the floor, the aspect, the view, the condition of the property or the quality of any renovation. The price also covers the whole transaction: where a garage, a cellar or a maid’s room was sold with the apartment, the price per square metre shown is mechanically inflated — which is why we state the number of ancillary lots. We exclude transactions whose price per square metre falls plainly outside the market (dismemberment of ownership, sales between related parties).
Two apartments of identical size in the same building can change hands at very different prices. These sales give an order of magnitude; they are not a valuation. To find out what a specific property is worth, ask us for a valuation.
What sets the price of an apartment at Le Rosemont
Le Rosemont trades around the average for the lower Mont Boron, with a wide spread: the sales published below range from single to triple per square metre. That gap is not an anomaly, it is the signature of a large development where floor, view and condition weigh more than floor area.
Our properties for sale nearby
We market apartments at Le Rosemont and across Mont Boron. Properties at this address are not always advertised: some sales are handled confidentially.
You can also browse all our properties in Nice.
Your contact for this address
Sandrine Scemama
Senior consultant
Sandrine covers Mont Boron and the Basse Corniche. For a valuation, to view, or to analyse an owners’ association of this size before buying, call her directly. Direct line +33 6 09 31 76 71, or the agency on +33 4 89 15 85 83.
Frequently asked questions about Le Rosemont
Is Le Rosemont well placed for year-round living?
It is one of the few points on Mont Boron where you stay connected to the city: shops, buses and access to the port without a major climb. That is a real argument for a main home, where the ridge addresses make a car essential.
Are service charges high in a development of 239 lots?
A large number of lots spreads the fixed charges, but it also means communal facilities and substantial upkeep. The right reflex is to read the last three financial years and the minutes of the general meetings: we give them to you before any decision.
Why do prices per square metre vary so much within the same building?
Because the floor and the outlook make most of the value here, and because the condition of the lots is very uneven. A renovated apartment on a high floor and an unmodernised lot at garden level do not belong to the same market, even at equal size.
What is my apartment at Le Rosemont worth?
The good news, in a building this active, is that comparables exist. We carry out a free and confidential valuation, on site, based on the sales actually recorded in the development.
Let’s talk about your property
A free, on-site and confidential valuation, based on the sales actually recorded at Le Rosemont and across Mont Boron.
Further reading
- Property on Mont Boron
- Le Baccarat, 75 bd Carnot
- Property on the port of Nice
- Property valuation in Nice: what really sets the price
- Selling your property with terrazzo.immo