Tell us more about your event
Dream events don’t just happen, they’re planned… and we’re here to help! We’d love to find out more about how we can bring your vision to life so please get in touch using the form below. We look forward to speaking with you soon.
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Thank you for considering London Marriott Hotel Grosvenor Square to host your special occasion.
During this time, our Memory Makers are supporting our whole family of Marriott hotels across the UK so there may be a delay in response. However, rest assured that we have received your enquiry and your Memory Maker will be in touch with you soon.
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Find Your Perfect Venue
All of life's milestones are an occasion to be celebrated. Your birthday, your wedding, your anniversary; at Marriott, we help you celebrate all of your momentous occasions because we love making memories.
 
Thank you for considering Marriott to host your special occasion. Please note that we may have limited availability for upcoming events. However, we look forward to your enquiry, and your Memory Maker will be in touch shortly to discuss your special occasion.
1. Select Your Event Type
4. Venue Features
  • Venues Inside Page Main Images

Your Event Rooms At London Marriott Grosvenor Square heading

However small or large your guest list - from an intimate 50 to a grand 1000 - our event suites are the perfect backdrop for your celebration.
 
At the London Marriott Grosvenor Square we don't just host events, we make memories.
London Marriott Hotel Grosvenor Square Events Spaces
    Event Spaces
    • Westminster Ballroom
      Event Spaces
      Westminster Ballroom
      Perfect for conferences, weddings, award dinners

      Host your next event at one of London's most historic hotels, the London Marriott Hotel Grosvenor Square. Modern technology and a variety of planning resources are paired with an unbeatable location to make your event a memorable one.

      Minimum Capacity: 50
      Maximum Capacity: 1000
      Start Planning
      Westminster Ballroom
    • Mayfair 1,2,3,4
      Event Spaces
      Mayfair 1,2,3,4
      Perfect for conferences, weddings, award dinners

      Host your next event at one of London's most historic hotels, the London Marriott Hotel Grosvenor Square. Modern technology and a variety of planning resources are paired with an unbeatable location to make your event a memorable one.

      Minimum Capacity: 50
      Maximum Capacity: 1000
      Start Planning
      Mayfair 1,2,3,4
    News & Offers
    • Marriott Bonvoy Events
      News & Offers
      Earn points with Marriott Bonvoy ™ Events

      We give you something else to celebrate when you plan your event with us! Earn Marriott Bonvoy™ points for eligible events you host at our participating hotels and resorts. Then, redeem the points you've earned for Free Night Awards at your choice of over 7,000 Marriott Bonvoy™ hotels around the world, once-in-a-lifetime experiences with Marriott Bonvoy™ Moments and more.

      Download the Marriott Bonvoy App and join today to discover the endless possibilities with Marriott Bonvoy™.

      Pictured left, JW Marriott Venice Resort & Spa.

      Learn More
      Overview and Special Occasions - Earn points with Marriott Bonvoy
    • your-love-story-deserves-the-perfect-setting.jpg
      News & Offers
      Your Love Story Deserves the Perfect Setting. Find the Ideal Hotel and Get 3x Points, Too.

      Book your wedding by 31st of May 2025 and earn 3x Marriott Bonvoy points at participating hotels across Europe, the Middle East and Africa. 

      Plus receive additional hotel specific benefits. 

      Start Planning Now.

      Your Love Story Deserves the Perfect Setting. Find the Ideal Hotel and Get 3x Points, Too.
    Our Guest Book
      London Marriott Hotel Grosvenor Square Events Spaces

      Where To Find Us Your idyllic London event venue

      memoriesMade Here