Typically for 10-20 guests and costs between £250 - £350.
"The Onion Room was perfect for our needs and just the right size."
- Gabrielle S. Apr 2026
The Onion Room is a private event space in 3 Henrietta Street and is defined by large windows that flood the room with natural light.
Design: The room features deep green-painted walls, a dark wide-plank wooden floor and a decorative fireplace at one end. Picture-rail moulding and linear track lighting maintain a simple, practical interior.
Features: The room includes a long central table and a mix of movable dining chairs and bar stools that can be reconfigured for different layouts. The space provides built-in cupboards and open shelving for staging or storage, and on-site Wi‑Fi for connected events.
Ideal for: Small professional teams and social friend groups benefit from the room's casual layout for seated meals or focused meetings.
What sets it apart: An in-room PA and permission to bring an external DJ allow hosts to create a self-curated sound setup for hosted events.
All food and beverage consumed at the premises must have been purchased at the premises.
(69 reviews and ratings - )
Yes, devices can connect to the screen via Wi-Fi or cable, and both options are available. The manager on duty can also assist with the connection.
The venue would like to know the dimensions of the keyboard, speakers and other equipment to review the setup and confirm whether they can be accommodated. Once these details are provided, the venue can confirm whether you can bring them.
Yes, the tea and coffee urns, along with the milk, will be placed on side tables.
No, the meeting room does not have speakers.
3 Henrietta Street is a Trusted Tagvenue Partner, validated by the Tagvenue team with a record of successful bookings on the platform.
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