#20 in Top 20 London for Business · ★★★★★
1 Hotel Mayfair
Berkeley Square, sustainability-led — the C-suite-with-an-ESG-mandate London base.
Berkeley Square, sustainability-led — the C-suite-with-an-ESG-mandate London base.
"Berkeley Square, sustainability-led — the C-suite-with-an-ESG-mandate London base."
1 Hotel Mayfair opened in 2024 as the latest addition to the SH Hotels & Resorts 1-Hotel sustainability-led brand and the first 1-Hotel in Europe. The hotel sits on Berkeley Street between Berkeley Square and Piccadilly — a five-minute walk from Claridge's, three from the Ritz, two from the Wolseley restaurant. Two hundred and seventy-nine rooms across the converted-office-block tower, the upper tier with private balconies and Berkeley-Square-direction views. The hotel's operating model is the most-aggressive sustainability-positioning in London five-star — zero single-use plastic, sustainable wood and reclaimed-stone interiors, organic-cotton bedding, in-room water filtration. The Dover Yard restaurant (in-house) is the working dinner room; the rooftop bar is the after-meeting space. 1 Hotel Mayfair is the right pick for the London business trip where the corporate-ESG mandate matters as a positioning signal — the financial-services or tech firm whose senior leadership has public sustainability commitments, the Northern-European-corporate visitor who expects sustainability infrastructure as table-stakes, and the multi-day Mayfair stay where the Berkeley-Square geography is the working asset without the £900-a-night Claridge's tier. The hotel does not have the brand-recognition of the older Mayfair palaces, but the operating model is the most-distinctive new opening of the past two years.
Berkeley Square View Suite or 1 Mayfair Suite for the corner-tier upgrade.
Use the rooftop bar at 6pm for the after-meeting drink — the Berkeley-Square direction has the most-cinematic Mayfair view. Dover Yard 7pm for the business dinner; the chef's-table corner four-top is reservation-only. Walk to Claridge's for the Foyer afternoon tea — five minutes through Berkeley Square.
1 Hotel Mayfair sits within our broader Top 20 Hotels in London for Business list. It scored an aggregate 9.6/10 across the three editorial criteria — competitive against the field but, on business-specific factors, the angle above is what earned its rank. For the alternatives in the same London neighbourhood, see Mayfair, Berkeley Square and adjacent. For a different city entirely, see the related lists below.
If you have already chosen the dates, our editor recommends booking the room twelve weeks ahead. The best suites with the right view orientation go first, and inventory for the popular months is quoted in months, not weeks. Suite-level rooms with private plunge pools or terraces — the ones that earn this rank — are typically the first to sell out.