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In the bustling heart of Westminster, nestled among the historic grandeur, towering offices and relentless pace, lies a hidden gem:  Mary Sumner House – a Grade-II listed venue where history meets purpose and your meeting room booking becomes a catalyst for global change.

Mary Sumner House offers a variety of 8 meeting rooms and Conference Hall, ranging in size from 6 in a Boardroom Layout to 120 in a Theatre-style Layout, suited to a wide array of events.

Mary Sumner House offers not just an affordable, high-quality venue and flexible catering options, but also a meaningful connection to social change, as the revenue generated helps support the ongoing work of Mothers’ Union, an international charity committed to empowering women and fighting poverty, violence and injustice.

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24 Tufton Street,
London,
SW1P 3RB
020 7222 5533 [email protected]
  • Max capacity120
  • Conference Hall120
  • Mary Sumner Room36
  • Queen Elizabeth II Room16
  • Wangari Maathai Room30
  • Maya Angelou Room25
  • Rosa Parks Room36
  • Mary Slessor Room15
  • Sarojini Naidu Room25
  • Malala Room6
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