London Marriott Hotel Grosvenor Square

@ji4xyc

London, United KingdomJoined 2026

Welcome to London Marriott Hotel Grosvenor Square, where we combine Mayfair elegance with versatile event facilities and attentive service. Located in the heart of London, we offer a range of spaces for corporate meetings, conferences, awards dinners, weddings, private dining and social celebrations. Our Westminster Ballroom provides an impressive setting for large-scale receptions and formal occasions, while our smaller meeting rooms accommodate board meetings, seminars and team discussions. We also offer flexible room combinations, breakout areas and modern audio-visual facilities to support different event requirements. Our catering team can help create suitable dining arrangements, and our dedicated events team works with organisers to coordinate the details of each occasion. Whether you are hosting a business gathering or celebrating a special milestone, we aim to provide a comfortable and professional experience in a well-connected central London location. Our facilities allow us to accommodate events ranging from smaller meetings to large receptions, with layouts tailored to the occasion.

10-1000 guests

Gallery

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Spaces & Packages

Westminster Ballroom

Price on request

We offer a spacious, pillar-free ballroom for large conferences, gala dinners, awards ceremonies and weddings, with flexible layouts for stages, presentations, dining and dancing.

Belgrave Room

Price on request

We provide a flexible event room for conferences, presentations, receptions and formal dinners, with multiple seating arrangements to suit different business and social occasions.

Chester Room

Price on request

We offer a versatile room for meetings, presentations, training sessions and receptions, with flexible configurations to support both collaborative business events and larger gatherings.

Eaton Room

Price on request

We provide a flexible setting for business meetings, presentations, seminars and receptions, with room layouts that can be adapted to the size and format of your event.

Whitehall Suite

Price on request

We offer a dedicated space for guest arrivals, drinks receptions and event transitions. It can complement larger functions, including conferences and weddings held in the ballroom.

St James Room

Price on request

We provide a smaller meeting space suited to board meetings, interviews, focused discussions and presentations for teams seeking a professional setting in Mayfair.

Hanover Room

Price on request

We offer a practical setting for small conferences, team meetings, seminars and private business discussions, with flexible layouts for a range of professional gatherings.

The Berkeley Suite

Price on request

We provide an adaptable space for meetings, presentations and private functions, with several seating options to support business events and smaller social gatherings.

Mayfair Suite

Price on request

We offer a flexible, contemporary setting for meetings, dinners, presentations and celebrations, with partition options that allow the space to be adapted to different group sizes.