1 photosImages not verified1 photosImages not verifiedMary Sumner House is a distinguished conference and meeting venue located in the heart of Westminster, just minutes from Westminster Abbey and the Houses of Parliament. This historic building serves as the headquarters of the Mothers' Union and offers a range of flexible meeting spaces suitable for conferences, seminars, and corporate events. The venue features modern audio-visual equipment, catering facilities, and professional event support services. With its prime location and excellent transport links, Mary Sumner House provides an ideal setting for business meetings and events in one of London's most prestigious areas.
Best suited for
Why book with us?
| Space | Theatre | Cabaret | Boardroom | Classroom | U-shape | Banquet | Reception |
|---|---|---|---|---|---|---|---|
| Main Conference Room | 120 | — | 30 | 60 | 35 | — | — |
| Committee Room | 40 | — | 18 | 24 | 20 | — | — |
| Meeting Room 1 | 25 | — | 12 | 16 | 15 | — | — |
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.
Day delegate rates from £350 including refreshments and lunch. Room hire from £150 per half day. Full catering packages available.
Request exact pricing →Dietary options catered for
Always confirm specific access requirements with our team — we check on your behalf.
24 Tufton Street, London, SW1P 3RB, United Kingdom
Every score below is computed from verified platform data — never marketing copy.
Mary Sumner House is a verified conference centre in London, hosting up to 120 guests, with day delegate rates from £230. 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.
Up to 120 guests in theatre style, 80 in classroom style, 40 in boardroom style
Standard AV equipment including projector, screen, PA system, microphones and high-speed Wi-Fi
Full catering services available including refreshments, lunch and dinner options
Limited on-street parking available, nearest car park 5 minutes walk
Mary Sumner House is a distinguished conference and meeting venue located in the heart of Westminster, just minutes from Westminster Abbey and the Houses of Parliament. This historic building serves as the headquarters of the Mothers' Union and offers a range of flexible meeting spaces suitable for conferences, seminars, and corporate events. The venue features modern audio-visual equipment, catering facilities, and professional event support services. With its prime location and excellent transport links, Mary Sumner House provides an ideal setting for business meetings and events in one of London's most prestigious areas.
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