All London Venues

Camden

Canary Wharf

Chelsea

Covent Garden

Farringdon

Hackney

Hammersmith

Islington

Kensington

King's Cross

London Bridge

Mayfair

Peckham

Shoreditch

Soho

Southwark

Victoria

West End

London

London Birthday Parties

London Christmas Parties

London Conferences

London Private Dining

London Summer Parties

London Team Activities

Popular Events

London Bars

London Bowling

London Dry Hire

London Function Rooms

London Halls

London Outdoor Venues

London Private Dining Rooms

London Small Venues

London Unique Venues

All Venues

All Inspiration

Popular Venues

Birmingham

Bristol

Manchester

More Locations

Popular cities

Westminster

All London Conference Venues

London Auditoriums

London Cheap Conference Centres

London Conference Rooms

London Exhibition Centres

London Hotels for Conferences

London Large Conference Venues

London Unique Conference Centres

Venues

Around the UK

Conferences

London Corporate Events

London Networking

London Presentations

London Team Away Days

London Events

London Banqueting Halls

London Exhibition Spaces

London Hotels

London Gardens

London Rooftops

London Large Venues

London Sustainable Venues

Corporate Events

All London Parties

London Birthdays

London Hen Dos

London Baby Showers

London New Year's Eve

London Proms

London Engagement Parties

Occasions

All London Bars

London Rooftop bars

London Cocktail Bars

London Wine Bars

London Sports Bars

London Jazz Bars

London Cool Bars

London Outdoor Bars

London Late Night

London Nice Bars

Bars

London Ballrooms

London Birthday Restaurants

London Party Apartments

London Party Boats

London Pubs

London Restaurants

More Venues

Liverpool

Parties

Borough

Clerkenwell

Elephant & Castle

Holborn

Hoxton

Notting Hill

St. Pancras

All London Meeting Rooms

London Meeting Rooms

London Cheap Meeting Rooms

London Cool Meeting Rooms

London Corporate Meeting Rooms

London Creative Meeting Rooms

London Hotel Meeting Rooms

London Small Meeting Rooms

London Training Rooms

London Unique Meeting Rooms

Meetings

Marylebone

All London Private Dining

London Cheap Private Dining

London Private Dining with a View

London Restaurant Function Rooms

London Unique Private Dining

Bristol 

Private Dining

All London Studios

Hammersmith & Fulham

Kensington & Chelsea

London Studios

London Dance Studios

London Film Studios

London Photography Studios

London Recording Studios

London Rehearsal Studios

Studios

All London Christmas Venues

How to plan an amazing Christmas party 2024

London Black Tie Christmas

London Corporate Christmas Party Venues

London Christmas Dinner

London Exclusive Christmas

London Christmas Team Activities

London Unique Christmas Party Venues

Christmas

Recent London Blogs

Things to Do in London This Autumn

Must-see London Art Exhibitions: Autumn 2024

Walthamstow: A Local's Guide

A Herne Hill to Die on: A Day in the South London Neighbourhood

Best Brixton Restaurants

Best Brunch in East London

Best Free Art Galleries in London

Recent London Inspiration

Area Guides

Art Cafes in London

Art & Culture

A Guide to London's Listening Bars

A Guide to London's Riverside & Canalside Bars

Best South London Pubs

South London Nightlife

Best Cheap Eats in London

Best Independent Bakeries in London

Best Independent Coffee Shops in London

Best Pho in London

Best Sushi in London

Restaurants

Best Autumn Walks in London

Best Cheap Date Ideas in London

Things to Do in Central London

Things to Do

London Inspiration

Situated on the second floor, the Wangari Maathai Room offers a professional, corporate environment in a light and airy space. The Wangari Maathai room can hold up to 20 people boardroom style or 30 people theatre style, other seating arrangements are available on request.

Breakout Spaces

Disabled Access

Natural Light

TV/Projector

Whiteboards/Flipcharts

The Sarojini Naidu Room is a modern room, perfect as a breakout room to the Mary Sumner Room, or used for smaller meetings and gatherings, accommodating a maximum of 25 people in a theatre-style layout or 14 people in a boardroom layout.

Sarojini Naidu Room

Mary Sumner House

Situated on the second floor, the Rosa Parks Room is a popular sized room that offers a quiet and modern atmosphere. Large windows offer a lot of natural light, and the room is spacious enough to provide flexible seating arrangements.

Rosa Parks Room

Situated on the second floor the Maya Angelou Room is ideally sized to seat 16 people boardroom or 25 people theatre layout. This popular room has a unique small area where refreshments may be served. Large windows let in plenty of natural light giving the room a spacious appeal.

Maya Angelou Room

Situated on the first floor the Mary Sumner Room has distinctive stained glass windows and chandeliers. With its calm and welcoming atmosphere filled with history since this unique building was constructed in 1925. It can accommodate 24 people boardroom style or 36 people theatre style.

Air Conditioning

Mary Sumner Room

Book the Conference Hall in the Mary Sumner House London. This is an ideal small conference venue in an accessible part of London. 

The venue is located in Westminster, one of London’s most iconic areas, full of historic landmarks. As well as being situated in such a well-known part of the city, it is also an accessible and convenient venue to reach by public transport. It is within reach of Westminster station and St James’s Park station, and a little further away is Victoria station, with rail transport links.

The Conference Hall is the largest meeting room in Mary Sumner House London. This elegant and spacious room seats 120 people theatre style, 60 people cabaret style, or 48 people boardroom style. It is versatile and adaptable for whatever your event and is the perfect size for using as a small conference venue or space for lectures and training seminars. The small stage at the front of the room gives the audience a clear view of speakers and can allow for both informal and formal meetings. Other seating arrangements are available on request. This space is often used in conjunction with the venue’s other rooms as breakout areas.

This is a practical and smart venue for a wide range of business events. 

Close to Transport Links

Audio Equipment

Conference Hall

Situated on the second floor, the Queen Elizabeth II Room is a unique and impressive room offering a professional yet relaxing atmosphere, giving delegates the option of a sofa to the side, and windows bringing in light from two sides.

Queen Elizabeth II Room

Situated on the second floor the Mary Slessor Room is ideal for smaller meetings or interviews or as additional space for larger groups. The Mary Slessor Room can seat 12 people boardroom or 15 people theatre layout.

Mary Slessor Room

The Malala Room is the smallest room we offer at Mary Sumner House, seating a maximum of six people in a boardroom layout.

It is ideal for small interviews, or as a holding room, private meetings and a break-out room to any of the other rooms we offer.

Hear from this and other available venues

Stop searching and let the perfect venue find you!

Mary Sumner House

Wangari Maathai Room

Great for

Facilities

Capacities

Location

More spaces from this host

Mary Sumner House - Sarojini Naidu Room

Mary Sumner House - Rosa Parks Room

Mary Sumner House - Maya Angelou Room

Mary Sumner House - Mary Sumner Room

Mary Sumner House - Conference Hall

Mary Sumner House - Queen Elizabeth II Room

Mary Sumner House - Mary Slessor Room

Mary Sumner House - Malala Room

Discover and hire the best venues across HeadBox