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Written by Luke Bull

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May 25, 2023

Our favourite large conference venues in London

Sometimes bigger simply is better. When it comes to putting on a massive conference in London, you're going to want a large conference centre to give you all the space you require.

The capital excels in providing a generous variety of large conference spaces, with old industrial venues, historic buildings and ultra-modern conference spaces littering the London landscape of big-time conferencing.

Let our collection inspire you to think about what kind of big conference venue you're after. Getting the right venue is the crucial first step in planning any conference – get this right and everything should follow smoothly.

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1. A grand conference venue fit for a king: Eltham Palace


Art Deco meets medieval in this unique mansion. Immerse yourself in this historic spot that once housed the infamous Henry VIII and is home to London’s oldest bridge over a moat.

The Entrance Hall is available for up to 120 private hire and is available for your corporate event. Head back to the 1930s and enter the circular wood-panelled room to welcome your guests with drinks and canapes. French doors open onto a terrace for guests to enjoy the gardens for a royal experience.

This space has hosted a range of successful projects from ITV’s ‘Jekyll and Hyde’ to serving as a royal backdrop to Netflix’s ‘The Crown’. For a venue that promises to impress, this one’s for you.

2. A lavish space for the biggest of events: JW Marriott Grosvenor House London

Marble Arch

JW Marriott Grosvenor House London incorporates a bit of everything. It features several grand and lavish spaces to host your conference right in the heart of Mayfair.

Whether it be The Great Room, The Ballroom or even The Spencer Suite, there is a sumptuous and palatial essence to every room. With the largest space able to host up to 2000 guests, size isn't an issue here, nor is transforming the venue to fit your requirements.

Full AV, free Wi-Fi and an events team on hand to help you every step of the way. Whether it be catering, layout or technological, they will facilitate any requests.

Just head to Marble Arch station and your hall is just around the corner from there.

3. Spark bright ideas at this large conference venue: The Science Museum

South Kensington

Get the innovative thoughts flowing and host your event at The Science Museum. This progressive space is perfect for large-scale conferences due to its open plan and plentiful spaces.

Try Illuminate, the museum's new blank canvas area. This flexible space has industrial decor with silver piped ceilings and can accommodate 450 guests. Enjoy its large windows that fill the room with light and offer panoramic views of the city.

For something more historic, hire Making The Modern World, an open space for 750 that chronicles inventions of modern society.

4. A large conference venue thats not just for cricket lovers: The Oval


The Oval is more than just a historic cricket ground, it is also a versatile space for hosting impressive events.

With many spaces to choose from one of our favourites is The Dutchy Suite. This area offers a conference and dining space for up to 650 people. Its theatre-style facility lends itself to presenting to a large group. Use the pavilion as a breakout space or for more intimate meetings.

Guests can find a private balcony and a well-stocked bar alongside a cloakroom for a luxury experience. A Q&A with players is also available as is gourmet food cooked by a Michelin-star chef.

With its high ceilings, natural light and access to two private terraces, The Oval offers a grand backdrop for your event so enquire now to book.

5. For an ambient conference venue with a great location: Glaziers Hall

London Bridge

For a unique conference venue, try Glaziers Hall in London Bridge. With views of the River Thames and the City of London, this venue is made up of 7 event spaces that can be hired as one.

Situated on a private road, this space has parking and great transport links from London Bridge. The Banquet Hall has space for 300 for a conference. Hire it alongside the River Room, Court Room and Library, which is full of original publications.

The entire venue is fully AV equipped and boasts high-speed Wi-Fi. For an impressive event, head to the newly restored Georgian London Bridge Arches and host networking drinks.

6. A grand space for a your next London conference: Central Hall


Central Hall Westminster is a historic event space between St James's Park and Westminster tube stations. This elegant venue space is known for hosting the first UN public address in 1946.

As central London’s largest purpose-built event Space, the Great Hall offers an astounding venue for corporate events. Its expansive capacity of up to 2,400 Guests can accommodate all the needs of a corporate client. From large-scale presentations and seminars to company get-togethers.

The high ceilings, wooden panelling and prominent columns provide an elegant backdrop for your conference needs. With state-of-the-art equipment, this venue has hosted a variety of events for up to 500 people.

7. Host your large conference under Victorian railway arches: The Steel Yard


Situated in the heart of the City, The Steel Yard is a spacious, and historic venue.

This venue is comprised of three beautiful Victorian railway arches and can be hired for any type of event. Whether a product launch, fashion show or a live stream, this unique venue acts as a dramatic backdrop to your event.

With a state-of-the-art sound system and in-house lighting, the Steel Yard truly provides a blank canvas to make your event exactly how you want. This venue is over 3000 square feet and accommodates up to 800 guests, so the opportunities of hosting an unforgettable event are endless here.

8. Large conference venues in London for music videos don’t come much more impressive than this: Sugar Studios Limited - The Big Space

North Greenwich, London

The Big Space from Sugar Studios Limited is one of the best large conference venues in London to record music videos, rehearse, or just hold a professional conference. With four studio spaces, this large venue can host up to 437 guests depending on your specific needs. The venue is a real blank space, with infinity coves and a green screen for whatever you require. Even a dinner party on an epic scale isn’t a problem for The Big Space.

9. This Grade II listed events venue is one of the leading large conference venues in London: Check out BMA House’s venues for your next conference

Euston, London

BMA House is a good choice for those seeking large conference venues in London, complete with a stunning backdrop. It can play host to a range of events such as business conferences, weddings, annual general meetings, awards ceremonies and more.

Find BMA House venues in Tavistock Square where you can enjoy high-tech AV, a calming botanical garden, and more. Whatever you need, this venue is full of history and charm that can create an enchanting environment for any event.

10. With a capacity for 6000 guests in this sizeable space, Reel Storage is one of the most flexible large conference venues in London

Canada Water, London

If you are seeking blank canvas large conference venues in London, then the 6000 capacity of Reel Storage will suit your needs. This London-based venue is spread over more than 119 square feet. You can access multiple floors and offices, with outdoor space open for use. Venues such as this are good for a number of purposes, whether you are hosting a product launch, conference or concert. A warehouse venue that you can truly put your mark on.

11. Purpose-built to meet a range of requirements that other venues may not be able to accommodate: Evolution London is a fantastic choice when it comes to large conference venues in London

Battersea Power Station, London

Nestled in Battersea Park, this event space can be tailored to suit your needs, no matter how lavish or fantastical they may be. You can throw conferences in this large venue, hold a charity fundraiser, or even host a film premiere. With so many choices at Evolution London, anything is possible.

The blank space provides a fantastic opportunity for branding so that every inch of the event is about you. This venue can host up to 5000 guests for exhibitions, with 2000 being able to dine here at one time - making it highly flexible when looking at large conference venues in London.

12. As far as large conference venues in London go, Magazine London leaves a big impression with state-of-the-art features

North Greenwich Station, London

Over 19994 square metres, Magazine London is one of the first large conference venues in London of its kind. This venue has been created with high-tech needs in mind, with hybrid spaces to accommodate your most ambitious guest list.

With The Showground boasting over 9700 metres of space, you can see the city skyline in full view and host whatever kind of event you need. With space for over 10,000 attendees, it is ideal for awards shows, conferences, fashion shows and more.

13. QEII provides the most impressive large conference venues in London with plenty of options for tailoring it to suit everything you want from your event

Westminster, London

An incredible conference and exhibition space in the City of Westminster, London’s QEII Centre is popular with those seeking large conference venues in London. This is due to its hard-to-beat facilities and 2500 guest capacity.

With huge amounts of events being held here each year, it is conveniently close to Westminster Abbey and Parliament, as well as many other major London landmarks. Your event could become part of this historical area, where it is a conference or a large-scale party with colleagues.

14. CEME is one of the best event and large conference venues in London, with enough space for meetings, weddings and more

Abbey Wood, London

The Centre for Engineering and Manufacturing Excellence (CEME) might not sound like a conference space - but trust us, it is something special.

The Event Space stands out amongst other large conference venues in London, with contemporary design and attention to detail. This modern event space provides innovative options and solutions for any kind of private function, whether you want catering options or something else entirely. Best of all, it is well located with incredible transport links.

15. The ExCel Centre is one of the best-known large conference venues in London - find out why

Royal Victoria Dock, London

ExCeL London is the leading London exhibition space that everyone wants to be at. Set in Newham, this large conference venue sits on 100 acres of space. Based on the quay of the Royal Victoria Dock in London Docklands, you can hold the largest events within its impressive range of venues.

There are over 40 gallery meeting rooms to choose from and the ICC Auditorium provides an adaptable space with natural daylight and private balconies so you can really create the right atmosphere. There are so many reasons why this is one of the most sought-after large conference venues in London.

16. The Royal Festival Hall is known for hosting artistic events at its large conference venues in London. Set on the Southbank, you can make it your own when you throw your next event there

Embankment, London

Boasting a 2700 capacity in the auditorium alone, the Royal Festival Hall is conveniently located within the famous London Southbank Centre. It is one of the most stylish large conference venues in London. Here, you will rub shoulders with creatives and business people alike, and have easy access to all sorts of essential venue amenities.

Whether you are seeking to hold a reading or literary event, a business conference or a dance, the Royal Festival Hall is large enough to accommodate your exact needs in this Grade I listed building.

17. When you need large conference venues in London, choosing spaces with some style should be top of the list. The Great Gallery is one of London’s biggest venues

Shadwell, London

If you are seeking large conference venues in London for dinners, events, business conferences and more, then few venues measure up to The Great Gallery at Tobacco Deck. Within, you will find vaulted ceilings and exposed timber beams with rustic brickwork to offset any event beautifully.

There is space for 1500 people theatre style or 640 if you wish to go cabaret. Whether your event is extra large or medium-sized, the charming period details are sure to wow any attendee.

The best large conference venues in London

Conference planning can be stressful - finding the venue doesn't have to be. London has no shortage of large conference venues ready to impress and inspire your guests. f you need some ideas for where to have your next convention, check out our comprehensive collection below. We've got everything from unique, creative spaces to huge venues with all the facilities you need for a successful conference. Alternatively, tell us exactly what you need and we'll make sure the very best London venues respond to your enquiry.

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How to hire a large conference venue in London

We know that finding a venue the old-fashioned way (where you trawl the internet, contact 10 venues or set your heart on one, only to find that they're out of your price range and not even available on your dates) is a pain, and there are a few pitfalls between you and book your perfect large conference room. Getting the venue-finding process down to professional art is what we’ve made our mission ever since we took on the events industry. We often get asked the same questions, so here's what we recommend to quickly and easily hire a space in London.

Frequently asked questions

For large conference venues in London, you're spoilt for choice. Here are a few extra special ones that we vouch for:

The Big Space, Sugar Studios Limited – The Big Space is available for a range of events. whether you're looking for a grand conference hall, a large-scale dinner party, or a space to rehearse; the possibilities in our Big Space are endless. This venue has a big space with the largest room, Sugar Studios, holding up to 220 seating and 437 standing and dimensions of 13 metres by 21 metres.

South Bank Suite, Coin Street Conference Centre – This venue is situated at the basement level and benefits from a high ceiling, bright lighting and complete privacy. This venue includes a large private foyer, that can be used to serve refreshments, and a third syndicate room, South Bank 3, is attached and can provide seating for up to 20 boardroom style.

There really is no one answer to this question: so many variables come into play when understanding the cost of exclusive hire of a large conference venue. How many guests are you planning for? Is the venue for the day, an afternoon, or the night? The good news is that you can find a venue for pretty much any budget (okay, almost any budget). Instead of letting the venue dictate the price, our advice is to be proactive and set a budget that you feel comfortable with – this way the right venues can reach out to you through HeadBox.

There are lots of ways to book a large London conference venue. You can do the old-fashioned thing and pick up the phone, or email the venue directly. Unfortunately, lots of venues are busy and may not get back to you in time. That's where we come in. Give us your enquiry and we'll reach out to the best large conference venues in London and let you enjoy your free time. Easy.

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