Deluxe King, Guest room, 1 King at London Marriott Hotel Grosvenor Square

Grosvenor Square Leisure Club — on‑site, 24/7 fitness centre with modern strength and cardio equipment for hotel guests.

Lucky Cat by Gordon Ramsay — contemporary Asian fine‑dining concept located in the hotel (menus and extended evening hours listed on hotel dining page).

Gordon Ramsay Bar & Grill — all‑day American steakhouse / grill in Mayfair offering breakfast through late evening service in a stylish yet informal setting.

The Luggage Room — award‑winning 1920s‑inspired speakeasy bar and lounge inside the hotel serving craft cocktails, wines, luxury teas and light bites.

M Club Lounge — dedicated executive/club lounge offering daily breakfast, snacks, hors d’oeuvres and complimentary soft drinks for eligible Marriott Bonvoy members and Executive/Club guests.

M Club / executive lounge offers an afternoon‑tea style service for lounge guests (afternoon tea served in the M Club lounge during the mid‑afternoon service window reported by reputable reviewer sites and lounge reports).

Private dining at Lucky Cat — three private dining rooms (Umi up to 10, Tochi up to 30, Sora up to 40) and a Chef’s Table experience for exclusive groups.

In‑room dining / room service available to guests (hotel lists room service among property services).

On‑site valet parking available for guests (surcharge applies; listed by major booking and hotel aggregator sites).

On‑site business centre and business services available to support meetings and corporate guests (copy/print/parcel/office services listed under event/business services).

Extensive meeting and event spaces including the Westminster Ballroom (largest capacity listed up to 900) plus multiple meeting rooms and AV/event services for conferences, weddings and private events.

Digital Check‑In and Mobile Key options available via the Marriott Bonvoy app for contactless arrival and room access.

On‑site laundry and valet / same‑day dry cleaning services available for guests.

Evening turndown service offered as part of guest services.

M Club (club/executive) lounge access available to Marriott Bonvoy Platinum/Titanium/Ambassador members and to guests booking Executive rooms or suites.

Select rooms and suites feature scenic views over Grosvenor Square and access to a private courtyard/garden in some premium accommodations.

The original London Marriott property in Mayfair (the hotel is presented as the first Marriott in London and part of Marriott’s long European legacy) and retains a historic, landmark Mayfair presence.

Recent refurbishment with an art‑deco inspired, curated lobby and new Lobby Lounge — public spaces highlighted as intentionally designed and curated.

Situated in Mayfair on Grosvenor Square — minutes from Bond Street, Oxford Street, Hyde Park and major London landmarks, positioning the hotel in a premium Mayfair location.

Green Key certified property with documented sustainability initiatives (food‑waste pledge, reduced single‑use plastics and ongoing sustainability targets and reporting).