Meeting Room Hire Westminster

Mary Sumner House provides a historic setting for conferences in the heart of Westminster, London. Our Grade II listed building is surrounded by impressive landmarks, including Big Ben and Houses of Parliament, and can host boardroom meetings of up to 48 guests.

Discover our meeting rooms

Explore our range of versatile meeting rooms available at Mary Sumner House.

Conference Hall

The Conference Hall is our largest space at Mary Sumner House, a versatile room that can be used for boardroom meetings of up to 48 guests. Hire of this lower-ground-floor space includes the use of a projector and screen, making it well-suited to presenting.

Mary Sumner Room

With original stained-glass windows and glass chandeliers, the Mary Sumner Room is ideal for Senior Leadership Team meetings, stakeholder and board meetings, interviews, and AGMs. This period room can host 24 guests in a boardroom layout and includes a display screen.

Sarojini Naidu Room

With a display screen and plenty of natural light, the Sarojini Naidu Room is well-suited to training sessions, workshops, and intimate meetings. This space accommodates 14 in a boardroom layout and works well alongside the Mary Sumner Room as a breakout space.

Malala Room

Our smallest meeting room is the Malala Room, seating a maximum of six guests in a boardroom setting. With a display screen, this intimate space suits private meetings, interviews and training sessions, or works as a breakout room alongside one of our other spaces.

Rosa Parks Room

The Rosa Parks Room is a modern meeting space with a display screen and large windows flooding the room with natural light. Holding 24 guests in a boardroom layout, it is best suited to senior management meetings, stakeholder and board meetings, and AGMs.

Wangari Maathai Room

Meet the Wangari Maathai Room, a modern meeting room equipped with a display screen and large windows offering plenty of natural light. This space is well-suited to smaller board meetings, briefings, and strategy sessions of up to 20 people in a boardroom layout.

Maya Angelou Room

The Maya Angelou Room hosts 16 guests in boardroom-style, ideal for senior leadership away days, smaller board meetings, workshops, and planning sessions. Hire includes use of a display screen, plus a recessed area to the side of the room, providing space for catering.

Queen Elizabeth II Room

With an original glass chandelier, a feature fireplace, and a dedicated boardroom table, the Queen Elizabeth II Room suits interviews, training or planning sessions. This period room accommodates 16 guests in boardroom-layout and includes a display screen.

Mary Slessor Room

Accommodating a maximum of 12 people in a boardroom layout, the Mary Slessor Room is best suited for hosting training sessions, workshops, and interviews. Hire of this second-floor space also includes the use of a display screen, making it ideal for presentations.

Audio-visual facilities for meetings

We have a selection of audio-visual facilities available to support your meeting. Our first and second floor meeting rooms offer video conferencing equipment, making them well-suited to hosting hybrid and virtual meetings. Table-top microphones and lectern microphones are available to hire for events in the Conference Hall. We also have several audio-visual packages available for meetings hosted in the Conference Hall.

For more information on our audio-visual equipment and packages, please reach out to our team.

Meeting catering

We can provide refreshments to complement your meeting in all of our rooms apart from the Conference Hall. This is priced at just £6 per person, including VAT, and includes tea, coffee, biscuits, and water.

For meetings requiring catering, we recommend either Spoilt for Choice or Sands Catering. Alternatively, you are welcome to use caterers of your choosing.

Why book with us

Our Central London events venue was built to celebrate Mothers’ Union and honour the founder Mary Sumner, representing 150 years of global impact across 84 countries with over 4 million members.

Mothers’ Union aims to bring justice, challenge prejudice and advocate change for communities worldwide. No matter how big or small, Mothers’ Union members are there to help provide support and love, free of judgement.

Any revenue generated from the building helps support the ongoing work of Mothers’ Union. So, when you book with us, you will be supporting our mission to create a better future where everyone has the opportunity and resources to thrive.

Getting here

Our building is in a prime Central London location, just moments from Parliament Square and Westminster Abbey.

Mary Sumner House is surrounded by excellent transport links and is a short walk from Victoria, Westminster and St James’s tube stations, served by the Victoria, Jubilee, District and Circle lines.

Our nearest train lines are Charing Cross, Waterloo and Victoria, and several buses pass by our venue, including 3, C10, 88, 11 and 87.

Book your next meeting at Mary Sumner House

For more information on our Westminster meeting rooms and to book your next event at Mary Sumner House, call us on 0207 222 5533, email us on conference@mothersunion.org or fill in our enquiry form today.