London Marriott Hotel Grosvenor Square

Floor Plans & Capacity Chart

The Ballroom – Classroom style

The Ballroom – Classroom style

Ballroom set for dinner

Floor Plans

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Capacity Chart

An overview of our event spaces View Capacity Chart

Planning Tools

Planning Guide & Tools

London Marriott® Hotel Grosvenor Square

Grosvenor Square London, W1K 6JP United Kingdom

  • Phone:  44 20 74931232
  • Fax :  44 20 74913201
  • Sales:  44 20 75141680

Mayfair Suite set for dinner

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Reservations by Phone

To make reservations by phone, call 1-800-228-9290 in the USA and Canada (or any of our worldwide reservation telephone numbers ).

Contact us for Assistance

  • Sales phone:
  • 44-20-75141680
  • Sales fax:
  • 44-20-75141528

Or, contact your nearest global sales office.

Free Meeting & Event Estimates

Submit RFP for event space and/or more than 25 guest rooms at this hotel

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