Side-by-side
The Chancery Rosewood London vs Four Seasons Hotel London at Ten Trinity Square
Four Seasons Hotel London at Ten Trinity Square takes the higher Fat Score, 17.0/20 to 16.5/20 — but it's a genuine choice: pick Four Seasons Hotel London at Ten Trinity Square for service, The Chancery Rosewood London for location.
Scored across five dimensions — Service, Design, Location, Dining, and Wellness — from signals across luxury travel communities, editorial publications, and verified guests.
Rosewood
The Chancery Rosewood London
The former U.S. Embassy on Grosvenor Square, reborn as Mayfair's most ambitious all-suite hotel — David Chipperfield architecture, Joseph Dirand interiors, and eight dining venues.
Four Seasons
Four Seasons Hotel London at Ten Trinity Squarehigher Fat Score
Scoreboard
| Dimension | The Chancery Rosewood London | Four Seasons Hotel London at Ten Trinity Square |
|---|---|---|
| Tier | Fat Approved | Fat Favorite |
| Overall Fat Score | 16.5/20 | 17.0/20Wins |
| Service | 15.0 | 17.5 |
| Design | 18.5 | 18.0 |
| Location | 18.0 | 16.0 |
| Dining | 17.0 | 15.0 |
| Wellness | 17.5 | 18.0 |
The Verdicts
The Chancery Rosewood London
The Chancery Rosewood took the old US Embassy on Grosvenor Square — a hulking Portland stone brutalist block — and turned it into Mayfair's most architecturally confident new arrival, with Joseph Dirand's walnut-and-brass interiors, a dug-out 18-meter basement wellness floor, and that salvaged B52-bomber eagle now perched above two new penthouse floors. The all-suite format means even entry rooms feel genuinely spacious by London standards, and the wellness offering — a rare 25m pool, full Asaya spa — is a legitimate differentiator in a city where most luxury hotels can't spare the square footage. The problem is consistency: for every guest who calls this the best hotel they've ever stayed in, another describes reactive service, mishandled afternoon tea, or a front desk that doesn't know how to recover from a hiccup. This tracks with a hotel still finding its rhythm less than a year after opening — the design and the F&B stars (the Japanese omakase, Serra, Eagle Bar) are already there, but the intuitive, anticipatory service that separates a Claridge's or Connaught from a very good newcomer isn't fully baked yet. Book it for the design, the suites, and the spa; go in knowing service can swing from genuinely spectacular to oddly clumsy depending on the day and the staff member you draw.
Four Seasons Hotel London at Ten Trinity Square
Housed in Edwin Cooper's 1922 Port of London Authority headquarters, Four Seasons Ten Trinity Square is one of the great adaptive-reuse hotels in Europe — a five-metre-ceilinged, art-deco-domed building that feels more like a private club than a chain hotel, and Condé Nast Traveler's comparison to a Bond lair is not far off. Staff are the recurring standout across dozens of accounts, with named employees at the Rotunda Bar, front desk and spa singled out repeatedly by different guests months apart, the kind of consensus that signals a genuinely well-drilled team rather than a lucky week. The underground spa and pool draw some of the strongest praise of any hotel spa in London, and suite guests describe cavernous, historic rooms with soaring ceilings that are rare for this city, even if some courtyard-facing standard rooms and mattresses disappoint. Food and beverage is the soft spot: the Rotunda afternoon tea attracts specific, repeated complaints about slow pacing, lukewarm dishes, an overly sweet selection, and stinginess with top-ups and hot water, while a meaningful minority of guests find the location — near Tower Bridge and the City, a good 25-30 minutes from Mayfair — inconvenient for first-time visitors chasing the West End. This is a five-star stay built for guests who want history, calm and an exceptional spa over postcode bragging rights; book a suite if budget allows and keep expectations modest for the tea service.
Strengths & trade-offs
The Chancery Rosewood London
Strengths
- Joseph Dirand's residential-feeling suites with walnut, brass, and rare green marble baths
- Rare 25m pool and expansive underground Asaya spa for central Mayfair
- Standout F&B lineup including a Ginza-style Michelin omakase and the destination Eagle Bar
- Dramatic brutalist-to-warm transformation of the former US Embassy building
- All-suite format delivers genuine space even in entry-level categories
Trade-offs
- Service consistency wavers — reactive recovery rather than proactive anticipation
- Concierge recommendations and tour pricing have drawn specific complaints
- Afternoon tea and some F&B execution described as hit-or-miss
- AC and plumbing noise issues reported in some suites
Four Seasons Hotel London at Ten Trinity Square
Strengths
- Staff repeatedly and specifically praised by name across years of reviews
- Spectacular adaptive reuse of the historic 1922 Port of London Authority building
- Underground spa and pool consistently rated among London's best
- Spacious, character-filled suites with soaring ceilings and genuine history
- Rotunda Bar's art-deco dome is a destination in its own right
Trade-offs
- Rotunda afternoon tea plagued by slow pacing, tepid food, and paid top-ups
- Location near Tower Bridge/City is inconvenient for guests centering trips on the West End
- Standard courtyard-facing rooms and mattresses inconsistent with suite-level quality
- Occasional billing and front-desk mix-ups reported