The short answer: only one of London's four headline 2026 luxury openings is live as of June. Six Senses London at The Whiteley opened on 1 March 2026. Still to come this year: the St. Regis London in Mayfair (mid-2026), the Waldorf Astoria London Admiralty Arch (2026, date moving), and Cambridge House, an Auberge Resorts Collection hotel on Piccadilly (later 2026). Dates and details below, each tied to a source.
By Marcus Ellison, Senior Editor · Last updated: June 10, 2026
We may earn a commission when you book through links on this page, at no extra cost to you. Rankings are editorial; we never accept payment for placement. Opening dates below were checked against brand newsrooms and trade press in June 2026 and are dated as such; pre-opening dates move, so confirm directly before you book.
The 2026 calendar at a glance
| Hotel | Area | Status (June 2026) | Rooms / brand |
|---|
| Six Senses London, The Whiteley | Bayswater | Open since 1 Mar 2026 | 109 rooms; Six Senses (IHG) |
| The St. Regis London | Mayfair | Due mid-2026 | 195 rooms; St. Regis (Marriott) |
| Waldorf Astoria Admiralty Arch | Westminster | Due 2026 (date moving) | ~100 rooms; Waldorf Astoria (Hilton) |
| Cambridge House | Piccadilly / Mayfair | Due later 2026 | ~102 rooms; Auberge Resorts |
How we verified these dates
Pre-opening dates are the hardest thing on a page like this to get right, because they slip. Every date here was checked in June 2026 against the operator's own newsroom or reputable trade press (Hilton, IHG, Marriott/St. Regis, Auberge, plus The Caterer, Boutique Hotelier and CoStar), and we say plainly which hotels are open versus merely scheduled. Where a date has moved more than once (the Admiralty Arch is the clearest case), we flag it rather than print a single confident month. We do not list a hotel as bookable until it has actually opened.
The openings, freshest first
1
Bayswater · Open now
Six Senses London at The Whiteley
Opened 1 March 2026 · 109 rooms
The headline: the only one of the four you can already book. Six Senses opened its first UK hotel on 1 March 2026 inside The Whiteley in Bayswater, the landmark that began life as London's first department store. The 109-room hotel adds 14 branded residences, a full Six Senses Spa and a private members' club, bringing the brand's wellness-led, low-key register to a part of west London that has lacked a five-star anchor.
Why it matters: Six Senses is best known for remote resorts, so a flagship city hotel is a genuine departure and a draw in its own right. Who it's for: travellers who want spa-and-sleep wellness rather than a grande-dame address.
Honest note: Bayswater is not Mayfair; the trade-off for the space and the spa is a location that is residential and a walk from the classic luxury core around Hyde Park's south side.
Source: IHG; HOTELS.
Browse London luxury hotels →
2
Mayfair · Scheduled
The St. Regis London
Due mid-2026 · 195 rooms
What's opening: the brand's first UK hotel, on the corner of Conduit Street and New Bond Street. The St. Regis London is the reborn Westbury Mayfair, reworked in a roughly 90 million pound redevelopment that adds an eighth floor and rebuilds the entrance and facade. Expect 195 rooms including 64 suites, a 90-cover signature restaurant, a late-night jazz bar and a library, with the much-loved Polo Bar kept intact. General manager Marco Novella has been leading the pre-opening since 2024.
When: mid-2026, after the date slid back from an earlier spring target.
Honest note: it is not open yet, so treat any "book now" listing with caution until the hotel confirms a live date.
Source: Hospitality Net; The Caterer.
Compare London's grande-dame hotels →
3
Westminster · Scheduled
Waldorf Astoria London Admiralty Arch
Due 2026, date moving · ~100 rooms
What's opening: Hilton's first Waldorf Astoria in London, inside the Grade I-listed Admiralty Arch at the top of The Mall, redeveloped by the Reuben Brothers. The plan is around 100 rooms plus restaurants and bars billed for "world-renowned" chefs, in one of the most recognisable buildings in Westminster.
When: 2026, but read the date with care. It has been cited variously as Q2, summer and July 2026, and the project was originally meant to open back in 2022.
Honest note: this is the entry most likely to move again. Until Hilton confirms a firm opening day, treat 2026 as a target rather than a promise.
Source: Hilton; Boutique Hotelier.
See our global openings tracker →
4
Piccadilly · Scheduled
Cambridge House, Auberge Collection
Due later 2026 · ~102 rooms
What's opening: the Auberge Resorts Collection's UK debut, in the Georgian mansion at 94 Piccadilly that spent more than a century as the "In and Out" Naval and Military Club. The Reuben Brothers project is set to deliver around 102 rooms, a private members' club, event spaces and a spa, with a destination restaurant, Major's Grill, from Major Food Group, the New York team behind Carbone.
Why it matters: a restored 18th-century house on Green Park, paired with a buzzy New York dining import, is a different proposition from the brand-new-build openings around it.
Honest note: "later 2026" is doing real work here; a heritage restoration of this scale is exactly the kind of project whose date can slide into the following year.
Source: Auberge Resorts Collection; Boutique Hotelier.
Our ranking of London's best hotels →
The one that opened just before the 2026 wave
If you are booking now and want a brand-new London hotel you can actually stay in, the most significant recent debut sits just outside this year's list. The Chancery Rosewood opened on 1 September 2025 in the Grade II-listed former US Embassy on Grosvenor Square, an all-suite hotel that capped a four-year redevelopment of one of Mayfair's most recognisable modernist buildings. It joined a remarkable run of openings, the Mandarin Oriental Mayfair (2024), 1 Hotel Mayfair (2024), Raffles London at The OWO (2023) and The Peninsula London (2023), that has reshaped the top of the London market in barely three years.
How to book a slipping opening without getting burned
Three rules travel well in a heavy opening year. First, do not pay in advance for a hotel that has not opened; pre-opening "rates" can appear on third-party sites months before doors actually open, and dates move. Second, if your trip is date-critical, book a hotel that is already trading (Six Senses among the new ones, or any of the established names) and treat the unopened properties as a maybe. Third, when an opening does land, the first few weeks are a soft-launch period: service is finding its feet and some facilities (spa, signature restaurant) often lag the room count by weeks. None of that is a reason to avoid a new hotel, only to go in with clear eyes.
Frequently asked questions
- What new luxury hotels are opening in London in 2026?
- Four headline openings. Six Senses London at The Whiteley in Bayswater opened in March 2026; the St. Regis London in Mayfair (the former Westbury) is due mid-2026; the Waldorf Astoria London Admiralty Arch is expected in 2026; and Cambridge House, an Auberge Resorts Collection hotel on Piccadilly, is set for later in 2026. Of the four, only Six Senses is open as of June 2026.
- Has Six Senses London opened yet?
- Yes. Six Senses London opened on 1 March 2026 inside The Whiteley in Bayswater, the redeveloped building that was London's first department store. It is the brand's UK debut, with 109 rooms, 14 residences, a Six Senses Spa and a private members' club.
- When does the St. Regis London open?
- Mid-2026, after the opening was pushed back from spring. The 195-room hotel (including 64 suites) is the first St. Regis in the UK, created from the former Westbury Mayfair on the corner of Conduit Street and New Bond Street through a roughly 90 million pound redevelopment that adds an eighth floor and keeps the Polo Bar.
- When will the Waldorf Astoria London Admiralty Arch open?
- In 2026, though the exact month has moved: sources have cited Q2, summer and July 2026, and the project was originally due in 2022. The Reuben Brothers redevelopment of the Grade I-listed Admiralty Arch will be Hilton's first Waldorf Astoria in London, with around 100 rooms. Confirm the date directly before booking.
- What is Cambridge House, Auberge Collection?
- A roughly 102-room luxury hotel and members' club opening later in 2026 in the Georgian mansion at 94 Piccadilly, the former "In and Out" Naval and Military Club. It is the Auberge Resorts Collection's UK debut, owned by the Reuben Brothers, and its restaurant, Major's Grill, comes from Major Food Group, the team behind Carbone.
- Which big London hotels opened just before 2026?
- The Chancery Rosewood, an all-suite hotel in the former US Embassy on Grosvenor Square, opened on 1 September 2025. It followed the Mandarin Oriental Mayfair (2024), 1 Hotel Mayfair (2024), Raffles London at The OWO (2023) and The Peninsula London (2023), part of a multi-year surge of luxury openings in the capital.
