Mary Sumner Room

The Mary Sumner Room accommodates up to 36 delegates in a theatre-style layout and features original stained-glass windows, modern AV technology, and flexible layouts to suit your business needs. Located in the heart of Westminster, our meeting room offers an inspiring environment for productive meetings, whilst just minutes from major transport links.

The history behind our Mary Sumner Room

Mary Sumner was a pioneering woman who founded the Mother’s Union  in 1876 from her home in Hampshire. Her vision was to unite all mothers bringing up children in faith. The Mary Sumner Room honours her memory and showcases a portrait of the Foundress of Mothers’ Union.

The Mary Sumner Room is one of two period rooms and holds special historical significance as the home of the Mothers Union Royal Charter, granted by King George V in 1926, alongside their official Coat of Arms, which was granted the following year in 1927. These features add to the room’s unique character and show the century-long heritage of Mary Sumner House.
This meeting room features original stained-glass windows, glass chandeliers and has excellent natural light through the historic windows.

Meeting types

The space can accommodate up to 36 people, making it perfect for a small-medium
meeting. It is an ideal room for:

• Senior leadership team meetings
• Stakeholder engagement meetings
• Board meetings
• High-profile Interviews
• AGMs and filming
•  Workshops

All furniture is flexible and can be re-configured to suit your specific needs which our team are happy to assist with. The Mary Sumner House room has hosted numerous meetings and workshops, providing teams with a great set-up for a productive meeting. If you’re looking for a small conference room, take a look at the Conference Hall.

We offer unlimited refreshments such as tea, coffee, biscuits, water at £6 (VAT inc.) per person and we also offer flexible catering options, giving you the freedom to bring in your preferred caterers, or we are happy to recommend our trusted caterers.

We understand how important a layout can be in ensuring a productive, collaborative meeting. With the Mary Sumner House Room, there are three different layouts to choose from depending on your needs.