5 Conference Venues With Outside Space

Looking to add a breath of fresh air to your next conference? We’ve rounded up four outstanding London venues that pair state-of-the-art facilities with outdoor spaces ideal for alfresco networking, fresh-air breakout sessions and post-programme receptions.

From terraces to gardens and courtyards, these spots bring the outside in without compromising on connectivity or convenience.

1. The HAC (Honourable Artillery Company)

Blending Georgian grandeur with contemporary polish, The HAC is a standout pick for conferences that need space and stature. The Prince Consort Rooms host up to 400 theatre-style beneath vaulted ceilings and skylights, with hardwood floors and a private courtyard entrance for smooth delegate flow. Superb natural light keeps energy high, while the setting’s modern finish feels unmistakably premium. In warmer months, the pop-up terrace adds an alfresco extension to your programme.

Outside, the five-acre Artillery Garden is ideal for fresh-air breakouts, walking meetings and post-session coffees, while the Queen’s Room and Ante Room offer elegant, daylight-filled spaces with garden views for boards or catering. With smaller suites close by and Old Street on the doorstep, it couples connectivity with calm so your content can truly shine.

Location: Old Street

Capacity: 400 Theatre

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2. Events @ No 6

Steps from Aldgate, events @ No 6 blends modern style, sustainability and serious tech to make conferences run like clockwork. The airy Elizabeth Room hosts up to 210 theatre-style with integrated AV, blackout and reliable Wi‑Fi, while additional rooms on the second floor provide slick breakouts for training, panels and speaker prep. An adjacent foyer streamlines registration and catering.

Crucially for fresh thinking, there’s an outdoor space perfect for alfresco coffee breaks, networking and end‑of‑day receptions for up to 150. With a proactive events team and profits supporting the Royal College of Pathologists’ work, this City gem delivers impact inside and out.

Location: Aldgate

Capacity: 210 Theatre

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3. RCP London Events (Royal College of Physicians)

Overlooking Regent’s Park, RCP London events pairs a striking Grade I listed modernist setting with conference-ready infrastructure. Choose the tiered Wolfson Theatre for up to 304 delegates or the Seligman Theatre for mid-size plenaries, with the characterful Dorchester Library for boards and breakouts. Expect reliable, high-spec AV, hybrid and streaming options, plus expert in‑house support to keep content running flawlessly.

Outside, the Medicinal Garden offers a calm, leafy backdrop for alfresco networking, fresh‑air coffee breaks and end‑of‑day receptions, bringing headspace without losing focus. With Baker Street, Euston and King’s Cross a short walk away, plus a fascinating on‑site museum, this Regent’s Park gem balances prestige, practicality and fresh air to elevate your programme.

Location: Regent’s Park

Capacity: 304 Theatre

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4. Science Gallery London

Bring big ideas to life at Science Gallery London, where inspiring exhibitions meet conference-ready spaces moments from London Bridge. Stage your plenary in the purpose-built Theatre (124 theatre) with retractable seating for slick switches between keynotes, panels and screenings, backed by reliable AV. Breakouts are effortless across flexible rooms, with the Atrium and reception smoothing registration, catering and delegate flow.

For fresh thinking, The Studio opens onto a private balcony overlooking the Courtyard, with head-turning views of The Shard. It’s spot-on for alfresco coffee breaks, open-air networking and end‑of‑day receptions, giving teams space to reset without losing momentum. Blending curiosity, convenience and a breath of London air, this venue makes conferences feel sharper, brighter and brilliantly connected.

Location: London Bridge

Capacity: 124 Theatre

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5. Prince Philip House

Set on The Mall with views across St James’s Park, Prince Philip House marries Grade I heritage with a crisp, contemporary finish that’s made for conferences. The Al Qasimi & ERA Foundation Room delivers a seamless plenary experience, with acoustic panelling, an accessible stage, HD projection and an expert onsite tech team to keep content running smoothly. Floor‑to‑ceiling windows flood the space with daylight, lifting energy and focus throughout the agenda.

For that all‑important breath of fresh air, the adjacent National Grid suite opens onto a small balcony – perfect for alfresco coffee breaks, impromptu networking and post‑session reset time. With dedicated spaces for catering and breakout, and Piccadilly Circus and Charing Cross close by, this Westminster address pairs polish with practicality.

Location: Westminster

Capacity: 170 Theatre

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From skyline terraces to leafy gardens, these London venues prove you don’t have to choose between fresh air and conference‑grade infrastructure. Each offers flexible indoor‑outdoor flow, robust AV and easy transport links to keep your programme running smoothly. get in touch with our venue experts for a tailored shortlist that fits your brief, budget and timeline.