The Royal Institute of International Affairs
The Royal Institute of International Affairs has 3 meeting/event spaces for 40–200 delegates (theatre), largest: Main Conference Hall (200).
- Up to 300 delegates
- 3 meeting spaces
1 photosPhotography pending verification1 photosCapacity overview
3 spaces · capacities by layout · floor area in m²
| Room | Theatre | Cabaret | Boardroom | Classroom | U-shape | Banquet | Reception | m² |
|---|---|---|---|---|---|---|---|---|
| Main Conference Hall | 200 | — | 30 | 120 | 40 | — | — | 150 |
| Council Room | 80 | — | 25 | 45 | 25 | — | — | 80 |
| Committee Room | 40 | — | 16 | 24 | 18 | — | — | 40 |
At a glance
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.
Best suited for
- International conferences
- Policy seminars
- Corporate meetings
- Academic symposiums
- Think tank events
Why book with us?
- Independent venue sourcing
- Free to event organisers
- Access to negotiated rates
- Alternative venues included
- Human expert support
Know before you book
Provenance shown for every factMeeting spaces at this venue
Pricing & packages
Exact rates are confirmed on your proposal — our experts negotiate on your behalf.
Meeting room, equipment, lunch & refreshments.
Half day, full day and evening rates available on request.
Bespoke menus and exclusive-use packages for private events.
Food & catering
- Restaurant on site
- Bar on site
Dietary options catered for
Top facilities
- Free WiFi
- AV equipment
- Historic building
- Professional event support
- Catering services
- Air conditioning
- Natural daylight
- Accessible entrance
AV & production
Accessibility
Always confirm specific access requirements with our team — we check on your behalf.
- Wheelchair accessible
- Step-free access
- Accessible toilets
Location & getting there
Chatham House, 10 St James's Square, London, SW1Y 4LE, United Kingdom
Venue Intelligence™
Every rating 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. Its profile rates most strongly 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.
Venue profile ratings
- Corporate★★★★★
- Luxury★★★★★
- Historic★★★★★
- Creative★★★★★
- Eco★★★★★
- Hybrid Ready★★★★★
- Networking★★★★★
- Training★★★★★
- International★★★★★
- Accessibility★★★★★
Verified on-site
- Wi-Fi✓ Verified
- AV & production✓ Verified
- Food & catering✓ Verified
- BedroomsNot listed
- SustainabilityNot listed
- Accessibility✓ Verified
Venue IQ™
A living intelligence record — every entry is generated from verified platform data, not marketing copy.
- Oct 2025Venue verified and listed
Added to the InternationalVenues.com verified directory.
- Oct 2025Photography refreshed — 4 images
Latest venue imagery reviewed and published.
- Oct 2025Quality score 100/100
Top-tier data completeness — capacities, facilities and access verified.
Frequently asked
How many meeting rooms does The Royal Institute of International Affairs have?
The Royal Institute of International Affairs has 3 meeting and event spaces in London, seating up to 200 delegates theatre-style in the largest room.
What is the capacity of The Royal Institute of International Affairs's largest event space?
The largest event space at The Royal Institute of International Affairs is Main Conference Hall, with a maximum capacity of 200 guests.
What conference facilities does The Royal Institute of International Affairs offer?
The Royal Institute of International Affairs offers Free WiFi, AV equipment, Historic building, Professional event support, High-definition projectors, Professional sound system, Wireless microphones across its 3 meeting and event spaces.
What is the maximum capacity?
Main auditorium seats 300 theatre-style, with additional breakout rooms for smaller meetings
What AV equipment is available?
State-of-the-art AV facilities including simultaneous interpretation, live streaming capabilities, and professional recording equipment
Is catering available?
In-house catering team provides breakfast, lunch, dinner, and refreshment packages with international cuisine options
Is there parking available?
Limited on-site parking available by arrangement; nearby public parking and excellent public transport links
About The Royal Institute of International Affairs
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.
Similar venues near London
Keep exploring
More venues in London1,445 more Jigsaw-researched venues
Not quite The Royal Institute of International Affairs? Browse every London venue we list, or brief a named expert and get like-for-like proposals free.
Photo: Winniepix · CC BY 2.0 via Wikimedia Commons
Own or manage The Royal Institute of International Affairs? Claim this listing free to respond to enquiries and manage your profile.