At Sloane
French-English fusion. Arts & Crafts meets Parisian seduction. Romantic, intimate, design-forward — every room individually conceived, every detail deliberate.
Ask for the restaurant's private chapel-like alcove down the narrow hallway — it seats four (or two) in total seclusion
Why It Matters
The Costes connection. Jean-Louis Costes is behind Hôtel Costes in Paris — one of the world's great design hotels. This is his London outpost, and unlike many such projects, it more than holds its own. Six years in the making, designed by François-Joseph Graf with a team of French artisans, it feels like a private residence that happens to have a world-class restaurant on the roof and a speakeasy in the basement.
At Sloane is what happens when French hotelier Jean-Louis Costes and his trusted designer François-Joseph Graf get their hands on a Victorian Chelsea townhouse. The building — dating to 1888, designed by Liberty & Co architect Edwin Thomas Hall — spent six years being transformed before opening in 2023, and it shows. Every corner earns its attention: mirrors hiding secret doors, black-and-white celebrity portraits lining stairwells, 300 hand-chosen Chinese vases up top, and a basement speakeasy that has no business being as cool as it is. The whole place runs on atmosphere — a signature house scent, candlelight everywhere, and a soundtrack that tips slightly more Paris than Chelsea.
Where You'll Stay
5 room types available
Appartement Sloane
The largest accommodation at the hotel, sleeping up to five across two bedrooms. Bay windows face Sloane Gardens. One bedroom has a 180cm king and the other a 160cm queen, flanking a spacious living room with banquette and table. Two full ensuite bathrooms — both with freestanding bathtub, walk-in shower, and twin sinks. A walk-in wardrobe, curated bookshelf, two smart TVs. For groups or families wanting the full Chelsea townhouse fantasy.
king and queen · 84 sqmChambre Sloane
Bay windows overlooking Sloane Gardens give this room a particularly good perch. The freestanding bathtub is the key upgrade over the Chelsea room — proper soak territory. Still queen-bedded, but generous with a full Graf interior treatment.
queen · 38 sqm
Chelsea
A step up in size and with views over Chelsea's residential Sloane Gardens street. King-size rooms come with walk-in shower and twin sinks; queen-size rooms add a bathtub. Same Graf-designed panelling, patterned windows, and individually curated books and artwork throughout.
king or queen · 30 sqm
Essentielle
The entry-level room, and still immaculate. At 18–22 sqm, it's compact but thoughtfully laid out, with François-Joseph Graf's signature intricate panelling, custom-made furnishings, patterned windows, and a curated selection of books and art unique to each room. Bathrooms have a walk-in shower and twin sinks — no bathtub at this level.
queen · 20 sqmSuite Sloane
The main suite, and worth it. Bay windows face both Sloane Square and Sloane Gardens. The living room is separated from the bedroom by patterned curtains rather than a wall — intimate rather than corporate. King bed, walk-in wardrobe, and a seriously good bathroom with freestanding tub and twin sinks. Handmade cashmere curtains, bathside champagne bucket as standard.
king · 46 sqmThe Property
Eat & Drink
2 venues on property
Restaurant
Amenities & Practical Info
The details that matter for planning.
Free WiFi throughout the hotel and in all rooms.
Available during restaurant hours (7am–10pm). Full restaurant menu delivered to your room.
The basement bar features a resident in-house DJ most evenings.
In-room toiletries are the hotel's own Costes brand bath products.
Minibar stocked with snacks and soft drinks at no charge — a rare and appreciated inclusion at this price point. Spirits and premium items also available.
Each room includes an iPad for controlling lighting, blinds, and music settings.
Smart TV with digital channels in all rooms.
Motorised blackout blinds controllable via iPad.
Outdoor terrace accessible from the basement bar, open during warmer months.
Dogs and cats under 10kg are welcome for £50 per stay (not per night). One of the more generous pet policies in London luxury hotels.
Hotel staff can arrange private transfers from any of London's airports on request.
BUILD YOUR AT SLOANE PLAN
Rooms, dining, spa, and resort experiences — organized into one trip plan.
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