1 photosImages not verified1 photosImages not verifiedThe Royal Institute of International Affairs, known as Chatham House, is housed in a magnificent Grade II* listed Georgian mansion dating from 1736. Located in the heart of St James's, this prestigious venue offers flexible conference and meeting spaces for up to 300 delegates. The venue features historic rooms with period details, modern AV equipment, and professional event support. Chatham House is renowned worldwide for hosting high-level diplomatic and policy discussions under the famous 'Chatham House Rule'. The venue combines historic grandeur with contemporary facilities, making it ideal for conferences, seminars, receptions, and diplomatic events in central London.
Best suited for
Why book with us?
| Space | Theatre | Cabaret | Boardroom | Classroom | U-shape | Banquet | Reception |
|---|---|---|---|---|---|---|---|
| Main Conference Hall | 200 | — | 30 | 120 | 40 | — | — |
| Council Room | 80 | — | 25 | 45 | 25 | — | — |
| Committee Room | 40 | — | 16 | 24 | 18 | — | — |
Day delegate rate from the venue’s published pricing. Exact quotes confirmed on your proposal.
Includes: Room hire estimate.
Half day, full day and evening rates available on request.
Bespoke menus and exclusive-use packages for private events.
Pricing available on request. Rates vary by room, duration, and event requirements.
Request exact pricing →Dietary options catered for
Always confirm specific access requirements with our team — we check on your behalf.
Chatham House, 10 St James's Square, London, SW1Y 4LE, United Kingdom
Every score below is computed from verified platform data — never marketing copy.
The Royal Institute of International Affairs is a verified conference centre in London, hosting up to 300 guests, with day delegate rates from £640. Its genome scores highest for Corporate, Historic, Hybrid Ready. Verified on-site: wi-fi, av & production, food & catering, accessibility. Best suited to corporate conferences and board meetings.
Best for: corporate conferences and board meetings, memorable events in a heritage setting, hybrid and streamed events.
Sustainability credentials are not yet evidenced in the profile data.
Main auditorium seats 300 theatre-style, with additional breakout rooms for smaller meetings
State-of-the-art AV facilities including simultaneous interpretation, live streaming capabilities, and professional recording equipment
In-house catering team provides breakfast, lunch, dinner, and refreshment packages with international cuisine options
Limited on-site parking available by arrangement; nearby public parking and excellent public transport links
The Royal Institute of International Affairs, known as Chatham House, is housed in a magnificent Grade II* listed Georgian mansion dating from 1736. Located in the heart of St James's, this prestigious venue offers flexible conference and meeting spaces for up to 300 delegates. The venue features historic rooms with period details, modern AV equipment, and professional event support. Chatham House is renowned worldwide for hosting high-level diplomatic and policy discussions under the famous 'Chatham House Rule'. The venue combines historic grandeur with contemporary facilities, making it ideal for conferences, seminars, receptions, and diplomatic events in central London.
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