Twenty Grosvenor Square, a Four Seasons Residence
London, United Kingdom. Four Seasons. Thirty-seven residences on Grosvenor Square, Mayfair — the first Four Seasons address with no hotel attached to it.
This is the building where Four Seasons proved it could sell service without a hotel behind it. Every branded residence before it leaned on a hotel next door or downstairs. Twenty Grosvenor Square has none: Four Seasons staff run the building, Four Seasons manages the property, and there is no lobby to walk through to reach any of it.
Finchatton developed and designed it with Squire & Partners, retaining one façade and building a new one to meet it — 250,000 square feet holding just thirty-seven apartments of three to five bedrooms, with a wine cellar, a 25-metre pool, a cinema, a crèche and separate staff access. The ratio is the point: thirty-seven homes in a quarter of a million square feet is a deliberate refusal of density on one of London's most valuable squares.
The square itself carries the history the building trades on. Number twenty housed the US Naval Forces in Europe during the Second World War and Eisenhower worked from it. The register notes the reported opening year as 2018 and does not carry it as fact — early announcements and later accounts differ, and the record says Completed without a date until the documents settle it.
Who it is not for
Not for a buyer who wants hotel amenity on demand: there is no hotel, only a staffed building, and the difference shows on a Tuesday night. Not for anyone who wants a new address — this is a restored building on a square with two centuries of opinions about who belongs on it.
Sources
- Four Seasons — fourseasons.com/residences, Twenty Grosvenor Square
- Luxury Briefing, 25 July 2019 — 37 residences, 250,000 sq ft, Finchatton with Squire & Partners
- PR Newswire, 17 July 2019 — Finchatton and Four Seasons announcement
- Interior Designer Magazine, 22 July 2019
- LHL-R-030 · Four Seasons Private Residences, Part VII P7-01-02
- newswire.ca 17.07.2019 (the world's first standalone Four Seasons Private Residences: 37 residences of three to five bedrooms in 250,000 sq ft by Finchatton with Squire & Partners; wine cellar, 25-metre pool, crèche, cinema, business suite, garden library; separate access for staff); fourseasons.com (the first Four Seasons property dedicated solely to residential living; the building sold out)
Pages read are linked.
Verification
- Official source
- Not yet checked
- Inventory
- Awaiting confirmation
- Sources disagree
- opening reported as 2018 in early announcements; completion year not carried
- Property confirmation
- Pending
- Last verified
- —
Booking
Private Residences records addresses; it does not broker them. Enquiries are passed to the party named in the record, and nothing on this site is an offer.
Make an enquiryClassified by The Resort Collection House · Edition 2026 · PR-D-056
In the journal
23.09.2026 · No country given, run 3 — New York's pattern-setter, its slenderest tower, and London's first hotel-less Four Seasons
The queue's third name, Twenty Grosvenor Square in Mayfair, was already held (PR-D-056): the first Four Seasons building with no hotel in it, and the model for the standalone branded residence the register now records from Bangkok to Diriyah. The intake guard refused it a second code; the existing record was given the sources found instead.
Named in research
- Savills · 2020 · Spotlight Branded Residences — p. 20 — as “Twenty Grosvenor Square”, confirmed under another name
Reports are catalogued in ResearchCorrespondence and linked to their publishers; the register does not republish them.
Investment migration — the facts the rule turns on
The rule for United Kingdom: No property route — checked 24.09.2026.
| Entry price | Not established | 06.09.2026 · searched in the record's sources; not published |
| Seller | Not established | 06.09.2026 · searched in the record's sources; not published |
The register publishes the facts and the rule; it does not say whether any purchase qualifies. Eligibility attaches to a sale, not to a building, and the register is not immigration counsel.