Versatile event space at Plaza Suites, Park Plaza London Riverbank, ideal for conferences. - Banner

Large Conference Venues in London for 400 people

Explore large conference venues in London suitable for 400 attendees. Perfect spaces for impactful events.

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Trending Large Conference Venues in London for 400 People

Finding the perfect large conference venue in London for 400 attendees can elevate your event to new heights.

  • OXO2 - image
    South Bank

    OXO2

    From £10,000 per person400

    A versatile blank canvas venue with Thames views, ideal for corporate events and receptions.

  • Kia Oval - image
    Vauxhall

    Kia Oval

    From £68.5 per person700

    A bright ground-floor event space with pitch views, ideal for dining and adaptable events.

  • Lancaster Gate

    Royal Lancaster London

    From £70 per person1,680

    A versatile, pillar-free event space in a modern hotel near Hyde Park, ideal for awards ceremonies and conferences.

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  • Wapping

    Studio Spaces

    From £6,500 per person1,000

    A vast 8000sqft industrial-chic venue in East London, ideal for conferences and brand events.

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  • Hammersmith

    Novotel London West

    From £90 per person1,000

    The fully carpeted and air conditioned Chablis Suite offers a dedicated bar, kitchen, cloakroom and office. Chablis Suite measures 1,360 m 2 (14,638 sq ft) and makes this ground floor space ideal for an exhibition, Events, Trade Fair, Product Launch or Meeting. Your guests get an excellent first impression as they enter the stylish registration area. Inside, the suite offers you the flexibility to let your imagination run wild.

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  • Wapping

    Tobacco Dock

    From £13,000 per person900

    A versatile, naturally lit gallery space with exposed beams, ideal for networking and events.

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  • Bankside

    Hilton London Bankside

    From £85 per person700

    A luxury hotel venue with flexible spaces for events from intimate gatherings to large celebrations.

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  • Chiswick

    Clayton Hotel Chiswick

    From £5,500 per person400

    A versatile, tech-equipped ballroom in West London for up to 330 guests. Ideal for various events.

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