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118 rooms and suites
/1899 telephone exchange built
/29 °C courtyard pool, heated
Red light,warm water.
At SAX Paris, there is a room in which you can meet yourself two hundred times. The Galerie is lined with that many mirrors, lit an extravagant red and hung with Baccarat chandeliers. It feels like entering a party at which you are both guest and audience. Fortunately, it is a lounge rather than an obstacle course on the way to reception. There is an actual desk for checking in. The hotel simply wants you to know, as soon as possible, that discretion is not its governing principle.
Outside, avenue de Saxe has other habits. When the Saxe-Breteuil market comes to life, stalls line the avenue, with the Eiffel Tower beyond the vegetables and cheeses. The seventh arrondissement normally wears its wealth quietly. The building at number 55 once made telephone calls possible rather than cocktails: Jean-Marie Boussard designed the Ségur exchange around 1900, and the façade still bears the Republic's initials, RF. The women who operated the switchboards would hardly recognise the red light show behind their old walls.
Opened as a hotel in 2025, SAX belongs to Hilton's LXR collection, though its personality owes little to the reassuring sameness usually associated with a global chain. There are 118 rooms and suites. Oak, leather and sharply veined marble give the bedrooms a much calmer palette than the Galerie; mirrors still find ways of appearing. In some rooms a glazed bathroom wall has an electronic blind, a theatrical touch that is sensible only when everyone can work the switch. This is design that wants to be noticed, which can be either a pleasure or a small daily inconvenience.
Read the room categories before falling for the Eiffel Tower photographs. A SAX Queen or Premium room starts at twenty-four square metres; a Deluxe gives you twenty-six. A Deluxe with Terrace adds private outdoor space, not another dozen square metres indoors. For a proper increase in size, the thirty-seven-square-metre Prestige is more convincing, while the Junior Suites run to thirty-eight. The eighty-square-metre Signature Suite is another world altogether. Some rooms face the garden, others Parisian rooftops. A view of the tower is not a prize automatically awarded for choosing an expensive-sounding category. Have the precise outlook confirmed.
The most persuasive reason to spend an afternoon here is downstairs in Le Jardin de SAX. The planted courtyard has striped chairs, tables under parasols and a little pool heated to twenty-nine degrees, with a jacuzzi alongside. It looks like a stylish seaside club that has taken a wrong turn at Les Invalides. You can cool off, read, eat something and let the city get on without you. But the water is for a dip rather than serious lengths, and this is a social courtyard, not the private pool of a country house. There is also a gym and spa for those who want to go indoors.
You need not climb to the roof for dinner. The ground-floor SAX restaurant sits beneath a ceiling fresco by street artist Sto; it gives the neighbourhood another reason to come through the doors. Higher up, Kinugawa Rive Gauche has the spectacular position, with Japanese cooking, a bar and Paris spread out around the Eiffel Tower. Breakfast is served up there too, a much quieter way to enjoy the view. The terrace, however, is part of a popular restaurant, not a private reward for holding a room key. It is a view worth planning an evening around, provided you enjoy company.
SAX asks a great deal for its performance. The public spaces can be dim and disorienting, the less expensive bedrooms are not especially large, and the rooftop attracts people who have no intention of sleeping here. Nor will the peaceful address automatically deliver a peaceful mood indoors. Yet the contrast is enjoyable: buy fruit at the market, spend the afternoon beside warm water, then watch the tower light up over dinner. The mirrors may flatter you; the smarter luxury is knowing exactly what lies beyond them.
Heated all year
An outdoor pool in a courtyard of the 7th.
A lounge with a guest list
The Galerie is the hotel's social room, a place to sit with a drink while the mirrors multiply the red light, and arrivals still carry on to a proper desk. It is also a venue. Hilton lists it for exclusive events, parties and private dinners, so the room passed in the morning may belong to someone else's celebration by night. Writers cannot agree what it resembles: Yonder sees a railway carriage, Gault&Millau the salon of an ocean liner.
Same size, different window
A SAX Premium room has exactly the floor space of a SAX Queen, 24 m²; what changes is the outlook. The hotel places the Premium on upper floors, looking through venetian blinds over the streets and rooftops of the 7th. In a room this size, where bed, desk and marble bathroom sit within a few steps, the window is what you are paying for. Of the three entry categories, only the 26 m² Deluxe can be made up with twin beds.
Liberty on the ceiling
Le SAX is the hotel's everyday room, where Hilton expects travellers and regulars from the 7th to share late breakfasts and business lunches, and where dinner need not mean the roof. Look up: Sto's ceiling reworks Delacroix's Liberty Leading the People, and the hotel says it also answers the République Française insignia on the façade. A painting of revolution above a hotel restaurant is an irony the building seems to enjoy. Executive chef David Maroleau runs the kitchen.
A restaurant that happens to be on the roof
Kinugawa Rive Gauche is run by the Kinugawa restaurant brand, with its own telephone line and booking system, and it is sized as a destination: 180 covers in the dining room and a rooftop terrace of about 350 m² above it. Non-residents reserve as for any Paris restaurant, and bar-only visits are possible. The open-air terrace is sometimes privatised for events. A room key guarantees neither a table nor the roof.
At a glance
Where
55 avenue de Saxe, 7th arrondissement; Duroc and Sèvres-Lecourbe metro stations a few steps away; Les Invalides about 1 km, the Eiffel Tower and the Musée d'Orsay about 2 km; Orly 15 km, Roissy-Charles de Gaulle 34 km
The house
The former Ségur telephone exchange of 1899, neo-Gothic in stone and red brick, with the RF monogram on the façade; opened as a hotel in 2025; owned and developed by Compagnie de Phalsbourg; LXR Hotels & Resorts, Hilton's first in France; interiors by Karine Journo's in-house studio; garden by Studio Ravn
Rooms
118 rooms and suites: SAX Queen 24 m²; SAX Premium 24 m², upper floors; Deluxe 26 m²; Deluxe with Terrace 26 m² plus a terrace of about 10 m²; Prestige 37 m²; Junior Suite and Junior Deluxe Suite 38 m²; Winter Garden Suite 40 m²; Prestige Junior Suite 50 m²; Signature Suite 80 m²; connecting rooms and multi-bedroom combinations
Eating and drinking
Le SAX, all-day restaurant and bar under Sto's ceiling, executive chef David Maroleau; Kinugawa Rive Gauche, Franco-Japanese, on two levels at the top of the building, 180 covers inside and a rooftop terrace of about 350 m²; breakfast on the seventh floor; Le Jardin, the garden restaurant in the courtyard
Wellbeing
Outdoor pool heated to 29 °C all year, with a jacuzzi, in Le Jardin de SAX; SAX Le Club on level -2: sauna, hammam, Technogym fitness room, two treatment rooms; mainly for resident guests, limited outside memberships
Practical
Pets up to 12 kg accepted; connecting rooms for families; accessible rooms in several categories; valet service and indoor parking; smoking only on terraces, in the garden and on the rooftop; private Seine boat and Eiffel Tower visits arranged by the concierge
Why this one
01
Warm water outdoors.
A courtyard pool kept at 29 °C all year.
02
A room that refuses to whisper.
The red Galerie and its mirrors.
03
Dinner facing the tower.
Kinugawa's rooftop, a floor above the city.
The Edit Notes
What a booking site will not tell you.
01
An owner's taste under a Hilton name.
SAX carries Hilton's LXR label, but Compagnie de Phalsbourg, the property group founded by Philippe Journo, owns and developed it, and the interiors come from its in-house studio led by Karine Journo. The electric red and the mirrors are therefore an owner's choices rather than a brand standard. Hilton contributes distribution and Honors points. Judge the house as an independent with a global booking engine, and expect neither the comforts nor the blandness of a chain template.
02
A pool for a dip, not for lengths.
The courtyard pool is heated to 29 °C and set in the middle of Le Jardin, the hotel’s garden restaurant. That placement tells you what it is for: a warm dip between a lunch and a walk to Les Invalides, a seat on the edge with a drink, never a training session. Treat it as part of the courtyard’s social life rather than as a sports facility, and it gives you something rare in central Paris: warm open-air water within sight of the city’s rooftops.
03
Built for nights out, planned for families.
The red Galerie suggests a hotel designed around evenings, yet the room list tells another story. Hilton sells connecting combinations up to a three-bedroom Signature arrangement for seven, Yonder found children's rooms set up with tipis, and dogs up to 12 kg are accepted. That contradiction works in families' favour: the courtyard and its pool are more useful to them than the rooftop. Connecting rooms are the smarter booking than squeezing a family into one suite.
04
A good gym, not a spa stay.
SAX Le Club, two levels below ground, has a sauna, a hammam, a Technogym room and just two treatment rooms, and the hotel describes the area as mainly for resident guests, with a limited number of outside memberships. That is a well-equipped hotel club, not a destination spa. Anyone planning a stay around treatments will be better served elsewhere; anyone who wants a sauna after a run along the Champ de Mars has what they need.
The price question
SAX charges luxury rates for an address in the 7th, a Hilton loyalty programme and a loud personality. The money buys a warm courtyard pool that few central Paris hotels can match, a rooftop restaurant with the tower in view and design that people talk about. It does not buy space at entry level, calm public rooms or exclusive use of the rooftop view. Book a Prestige room or a suite and the equation holds; in the smallest rooms most of the theatre is downstairs.
What the money buys
An outdoor pool and jacuzzi heated to 29 °C all year.
Le SAX and a rooftop restaurant that draw the city in.
Hilton Honors points in a house with an owner's taste.
What it leaves out
Space in the 24 m² entry rooms.
A spa for a treatment-led stay.
A roof or a lounge kept for residents.
Who it suits
Book it for a lively base near Les Invalides, a courtyard swim and dinner with a view, in a Prestige room or larger. Look elsewhere for hushed corridors, a treatment-led spa or a generous room at the entry price.
Who should spend elsewhere
Le Cinq Codet
On rue Louis Codet in the 7th: 67 rooms in a former 1930s telephone exchange, with a spa on an open-air terrace.
Le Narcisse Blanc
On boulevard de La Tour-Maubourg in the 7th: 37 rooms and a spa with an indoor counter-current pool.
The Extra Edit
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The Edit score is the editor's grade for the level of the hotel, out of ten. It weighs what the outside judges say (Michelin Keys, Forbes Travel Guide, World's 50 Best Hotels, Atout France palace status, La Liste), what changed in the last two years and what guests write now; where these and the editor's own judgement disagree, the editor decides. A spa with a pool worth booking for adds up to two tenths.
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