Side by side Four Seasons Hotel London at Tower Bridge vs Mandarin Oriental Mayfair, London

This is the former Port of London Authority building turned Four Seasons, and the scale of that conversion is most of the case: five-metre ceilings, hand-carved plasterwork, suites that run to 70 square metres with gas fireplaces and freestanding tubs. Base rooms face an internal courtyard rather than the Thames, but the trade-off is quiet, genuinely quiet, in a way few central London hotels manage. The building alone is worth the detour east.

The catch is location and food, and both are price-conditional rather than dealbreakers. Tower Bridge and the Tower of London are on the doorstep, and the tube is a minute away, but Mayfair and the West End are a 30-minute Uber, which matters if that's why you're in London. Afternoon tea is the recurring sore point: guests report 45-minute waits, cold scones, savoury portions that don't match the sweet course, and a kitchen unwilling to comp a top-up on a five-star bill. Breakfast is similarly hit-or-miss for a hotel at this level, while the Rotunda Bar's cocktails get named and praised repeatedly, with Trey behind the bar coming up on his own merits.

The spa is a genuine draw, an 18,000-square-foot basement space with a proper sauna and steam room, best visited early morning before the pool fills with children (there's a no-kids-after-11am window that regulars plan around). Book this for the room, the quiet, and a hotel that resolved a broken air conditioner at midnight by moving a guest into a better suite without fuss. Skip the tea, and if Mayfair proximity matters more than square footage, that's a fair reason to look elsewhere.

A one-night stopover here gets you a marble staircase people stop to photograph mid-coffee, suites bigger than almost anything else this central, and a rooftop bar with proper skyline views. The building is new enough that everything still feels considered: heated bathroom floors, windows that block out street noise entirely, a spa with a 25-metre pool that guests swim proper laps in rather than just dip into. For a hotel with only 50 rooms, that scale of finish is rare, and it's the reason so many guests call it their favourite Mandarin Oriental in the group.

Where it costs you is consistency, not quality. The doormen and reception staff get singled out by name for genuine warmth, but breakfast service has been described as guests left ten or fifteen minutes without a drink order taken, and the pool/spa desk has been left unstaffed with no one to direct guests out at closing. The hotel restaurant is also only open for breakfast, so outside the rooftop bar and room service there's nowhere else on property to eat, which matters more here than at a hotel with three restaurants to fall back on. One guest also flagged construction noise from next door, though most stays don't mention it. None of this cancels the staff warmth guests report elsewhere in the building, but at this rate it's fair to expect it at every table, not most of them.

Book it if you want the newest, most residential-feeling luxury address in Mayfair and you're not fussy about breakfast running on time. If you want old-world grandeur and more room categories to choose from, Claridge's is the obvious comparison; if it's your only night in London and you just want a beautiful, quiet room near the Elizabeth line, this is the one worth the money.