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.

With 8 meeting rooms and a Conference Hall accommodating 6 to 120 people, Mary Sumner House offers flexible spaces for diverse events. Beyond providing an affordable, high-quality location, Mary Sumner House supports Mothers' Union, an international charity dedicated to empowering women and combating poverty, violence, and injustice through its revenue generation.

Sponsored Events

CLA Conference 2017

Monday, July 19, 2021

9:00 AM to 11:00 AM GMT

RTV Studio

Link vi2 Temperhouse Square, 790 Holborn London,

TMC Showcase - Ireland

Monday, July 19, 2021

9:00 AM to 11:00 AM GMT

RTV Studio

Link vi2 Temperhouse Square, 790 Holborn London,

Travel Risk Management 

Monday, July 19, 2021

9:00 AM to 11:00 AM GMT

RTV Studio

Link vi2 Temperhouse Square, 790 Holborn London,

Industry Affairs Groups

Monday, July 19, 2021

9:00 AM to 11:00 AM GMT

RTV Studio

Link vi2 Temperhouse Square, 790 Holborn London,