Marriott Hotel Grosvenor Square
Grosvenor Square, London, W1K 6JP -
Up to
1000 guests
About Venue
London Marriott Hotel Grosvenor Square has 14 meeting rooms with a maximum capacity of 1000 theater style. Business facilities are available for use by delegates.This venue boasts 2 restaurants by Gordon Ramsay. We proudly offer some of the largest meeting spaces in Mayfair, with versatile rooms for hire. The Mayfair Suite can be divided into four separate rooms for hire, ideal for breakout meetings. Allow our experienced on-site culinary team to create a meeting menu that exceeds your expectations.
Enhance your meeting with modern in-room audiovisual equipment and high-speed Internet access. Thanks to our prime Central London location, your meeting guests can access our hotel with ease.
The Mayfair Suite
up to 240 standingThe Sloane
up to 30 standingMayfair 4
up to 30 standingMayfair 3
up to 50 standingEaton Room
up to 200 standingWhitehall Suite
up to 550 standingChester Room
up to 180 standingBelgrave
up to 320 standingThe Berkley
up to 50 standingMayfair 1
up to 50 standingWestminster Ballroom
up to 1000 standingMayfair 2
up to 50 standingHanover
up to 54 standingSt James
up to 50 standingCapacity & Layout
Standing
up to 1000
Theatre
up to 900
Boardroom
up to 120
Classroom
up to 500
Facilities & Amenities
Tea
Stage
Air conditioning
Telephone
Print/Scan/Copy
Audio & Visual
Projector & screen
TV screen
Flipchart
Other
AV equipment, CD player, Film projector, LCD projector, Microphone, Overhead projector, Rear screen projection, TV, videocameras available.
Space Rules
Cancellation policy
100% refundable 1 day before the event
Location
Reviews
- Food LoverFebruary 2026
Attended a Palestine Gaza black tie event at this prestigious venue. Located main road Central London with branded high street shopping streets. Parking is available on streets and carparks nearby. Hotel is beautiful and staff are friendly. Large hall was booked and setup was amazing. The food was from catering company and everything handled by venue was brilliant.
- Ellie AhmadiFebruary 2026
Great staff and service. Nice amenities. They really took good care of me. I had a treat every night I stayed there: from fresh bottled orange juice to cookies to a box of chocolate. Great location in the Mayfair area. Quiet room and a very comfortable bed. Only reason i have it a 4 was some minor stuff like no convenient power outlets near the bed or in the bathroom. Made it hard to blow dry my hair.
Spaces
At This Venue
The Mayfair Suite
£POAup to 240 standing
80% would book it againThe Sloane
£POAup to 30 standing80% would book it againMayfair 4
£POAup to 30 standing80% would book it againMayfair 3
£POAup to 50 standing80% would book it againEaton Room
£POAup to 200 standing80% would book it againWhitehall Suite
£POAup to 550 standing80% would book it againChester Room
£POAup to 180 standing80% would book it againBelgrave
£POAup to 320 standing80% would book it againThe Berkley
£POAup to 50 standing80% would book it againMayfair 1
£POAup to 50 standing80% would book it againWestminster Ballroom
£POAup to 1000 standing80% would book it againMayfair 2
£POAup to 50 standing80% would book it againHanover
£POAup to 54 standing80% would book it againSt James
£POAup to 50 standing80% would book it again
The Mayfair Suite
up to 240 standingThe Sloane
up to 30 standingMayfair 4
up to 30 standingMayfair 3
up to 50 standingEaton Room
up to 200 standingWhitehall Suite
up to 550 standingChester Room
up to 180 standingBelgrave
up to 320 standingThe Berkley
up to 50 standingMayfair 1
up to 50 standingWestminster Ballroom
up to 1000 standingMayfair 2
up to 50 standingHanover
up to 54 standingSt James
up to 50 standingSimilar venues
British Library, Terrace Restaurant
up to 120 standing100% would book it again
Holiday Inn London Whitechapel/ Whitechapel Think Factory, Green Room Suite
up to 15 standing80% would book it again
Troxy, Grand Hall
up to 2100 standing80% would book it again
