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London Marriott Hotel Grosvenor Square

Business Events & Meetings Overview

Located in the upscale community of Mayfair, London Marriott Hotel Grosvenor Square offers 10 meeting rooms for hire, including a grand ballroom. Enjoy superb event catering and high-tech audiovisual services. Define your next occasion at our distinguished 5-star hotel.


Request for Proposal

Event Space Details

Host your event in our elegant Westminster Ballroom here in Mayfair. Encompassing 762 square meters (8,216 square feet), our ballroom is one of the largest pillarless ballrooms in London. Divide our ballroom into three separate conference areas to best meet your needs. Altogether, our hotel offers 10 meeting rooms for hire. Whether hosting a reception for up to 1,000 guests (with catering by our expert culinary team) or a board meeting for 12, our stylish, high-tech spaces, complimented by intuitive service, will distinguish your event.

Meetings and Events Brochure (PDF)

3D Meeting Space Floor Plans (PDF)


Our Mayfair, London, hotel has been honored with numerous awards for customer service over the years, but our most treasured awards come from our customers.

'Marriott Grosvenor Square helped us every step of the way to organise what we wanted. Amazing.'-Arun Luthra, Managing Director of Ragasaan.

'Haymarket Media Group have been working with the hotel across our portfolio of Award events. The team are superb to work with from the initial contract stage to the team delivering the event on the day. I would strongly recommend the venue for events and have enjoy working with them over a number of years.' -Helen Horton, Managing Director of Green leaf services.

Unique Spaces

Add value to the experience of your delegates with our 5-star service and prestigious address in Mayfair, London. In addition to our ballroom and meeting rooms for hire, our hotel offers one-of-a-kind spaces:

  • The Luggage Room Bar - Our 1920s speakeasy was recently named one of the World's Best Bars for 2016.
  • Plan a chef's table experience with our event catering team or enjoy private dining options for up to 40 guests at our maze and maze Grill by Gordon Ramsay.
  • Book one of our eight Balcony Suites and enjoy an exclusive cocktail reception within our secret garden.

Contact Us

To create your personalized proposal and check our event catering and meeting room availability:

Phone: +44-20-74931232

Directions and Parking

Our hotel's main entrance is on Duke Street in Mayfair, London, just off the northeast corner of Grosvenor Square. The Bond Street Tube Station is within walking distance.

From Heathrow Airport (LHR) take M4 E to Cromwell Rd. Follow through Knightsbridge to Hyde Pk Corner. Around HPC to Park Lane. Turn right down Upper Brook St to Grosvenor Square, left at Duke St.

Valet and off-site parking are available, both at a rate of 60 GBP, daily.

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