UK > London > Central London > Marylebone > 20 Cavendish Square
A conference centre with a multi-storey historic facade, flagpoles, and large windows at 20 Cavendish Square.

20 Cavendish Square

Conference Centre

#4 of 229 Conference venues in Theatreland
#7 of 844 Corporate Event venues in Westminster Borough
  26 reviews  – 
20 Cavendish Square, London, W1G 0RN –
Oxford Circus Station (0.2 mi)
From £300
hire fee
Up to 180
seats
Up to 200
standing
Venue offers catering
Parking available
Manager's avatar
Valerija Zimenkova
Your Personal Event Manager from Royal College of Nursing
Response rate: 99%
Response time: Within 1 hour
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Partnered with Tagvenue for 3 years
This manager has been a trusted partner of Tagvenue, consistently recognised by customers for their reliability.
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Spaces for hire at 20 Cavendish Square

Cowdray Hall & Council Room at 20 Cavendish Square
Cowdray Hall & Council Room
Hall
·
Private space
180 seats
200 standing
Cowdray Hall is an exquisite space that boasts beautiful architecture mixed with modern conference facilities. It has flexible staging that can be adapted to suit your needs and can accommodate up to 200 delegates making this a great conference space. The Council Room is a beautiful area with an intricate 1930s glass dome ceiling which makes a gre...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £3400 hire fee
Enquire now
Edith Cavell at 20 Cavendish Square
Edith Cavell
Meeting Room
·
Private space
35 seats
Book 1 hr. minimum
Modern meeting space with tons of natural daylight and the added benefit of being flexible. Perfect for training days, workshops, and larger meetings. State-of-the-art hybrid AV facilities included Located in a historic 18th-century townhouse just behind John Lewis on Oxford Street, close to both Oxford Circus and Bond Street underground stations.
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £700 hire fee
Enquire now
Rosalind Paget Room at 20 Cavendish Square
Rosalind Paget Room
Training Room
·
Private space
60 seats
Book 1 hr. minimum
Versatile meeting room on a third floor flooded with daylight and state-of-the-art AV facilities. Perfect for workshops, training days, and larger meetings. Located in a historic 18th-century townhouse just behind John Lewis on Oxford Street, close to both Oxford Circus and Bond Street underground stations.
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £950 hire fee
Enquire now
Marjorie Simpson Room at 20 Cavendish Square
Marjorie Simpson Room
Meeting Room
·
Private space
30 seats
Book 1 hr. minimum
Beautiful south-facing meeting room flooded with daylight. Perfect for meeting with up to 16 people. Large TV and smart web conference facilities and flipchart are included as part of room hire. Located in a historic 18th-century townhouse just behind John Lewis on Oxford Street, close to both Oxford Circus and Bond Street underground stations.
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £700 hire fee
Enquire now
Sarah Swift Room at 20 Cavendish Square
Sarah Swift Room
Boardroom
·
Private space
14 seats
Book 1 hr. minimum
Fixed boardroom with a capacity of up to 14 people, this magnificent boardroom features 5-meter tall ceiling, large windows, and oak walls paneled in memory of Viscountess Cowdray. With original features dating back to 1922 this room is a perfect space for an executive board meeting. The room also features built-in TV screen and Yealink conference ...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £660 hire fee
Enquire now
Annie Altschul/Agnes Hunt at 20 Cavendish Square
Annie Altschul/Agnes Hunt
Training Room
·
Private space
90 seats
100 standing
Book 4 hr. minimum
Annie Altschul & Agnes Hunt open out into a single bright, modern event space. Benefiting from natural daylight together they offer flexible layout options for capacities up to 90 people. Ideal for workshops and presentations. All our rooms support video conferencing with Microsoft Teams or Zoom, making them ideal for hybrid meetings and events. A...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £1600 hire fee
Enquire now
Peggy Nuttall Room at 20 Cavendish Square
Peggy Nuttall Room
Meeting Room
·
Private space
30 seats
Book 4 hr. minimum
A large meeting room with a capacity for 30 people in boardroom style or 30 in cabaret style. This room is perfect for large board meetings with high ceilings, flooded with daylight, and plenty of space at the back for catering. The room also features not one but two TV screens with an HDMI dongle, sound bar, and Yealink conference unit for any re...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £900 hire fee
Enquire now
Jean McFarlane Room at 20 Cavendish Square
Jean McFarlane Room
Meeting Room
·
Private space
14 seats
Book 2 hr. minimum
A grand meeting room with natural daylight and perfect for meetings with up to 14 people with a table for catering. Large TV screen and smart web conference facilities and flipchart included as part of room hire. Located in a historic 18th-century townhouse just behind John Lewis on Oxford Street, close to both Oxford Circus and Bond Street undergr...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £660 hire fee
Enquire now
Florence Nightingale Room at 20 Cavendish Square
Florence Nightingale Room
Meeting Room
·
Private space
10 seats
Book 2 hr. minimum
Small meeting room flooded with daylight and enough space for 10 people with a table for any catering. Screen with smart web conference facilities and flipchart included as part of room hire. The venue is conveniently situated just behind John Lewis on Oxford Street, offering proximity to both Oxford Circus and Bond Street underground stations."
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £300 hire fee
Enquire now
Mary Seacole Room at 20 Cavendish Square
Mary Seacole Room
Meeting Room
·
Private space
10 seats
20 standing
Book 2 hr. minimum
Mary Seacole Room is a compact meeting space filled with plenty of natural light, making the space bright and comfortable for working together. The room is designed for 10 individuals, complete with a table for catering needs. The room rental includes a screen equipped with smart web conference capabilities and a flipchart.
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £300 hire fee
Enquire now
Mona Grey Room at 20 Cavendish Square
Mona Grey Room
Meeting Room
·
Private space
12 seats
Book 1 hr. minimum
Small meeting room flooded with daylight and enough space for 12 people with a table for any catering. Screen with smart web conference facilities and flipchart included as part of room hire. The space is bathed in natural light, thanks to its large windows and light-colored walls that make the most out of the daylight.
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £700 hire fee
Enquire now
Betsi Cadwaladr Room at 20 Cavendish Square
Betsi Cadwaladr Room
Meeting Room
·
Private space
8 seats
Book 2 hr. minimum
Betsi Cadwaladr Room is a petite meeting chamber bathed in ample natural light, offering seating for up to 8 individuals along with provision for catering services and other amenities. The room rental comes with smart web conferencing amenities and a flipchart. Located on the third floor of a historic 18th-century townhouse just behind John Lewis ...
Wi-Fi available
PA system / music speakers
Projector
Air conditioner
Flatscreen TV
from £300 hire fee
Enquire now

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20 Cavendish Square, London, W1G 0RN
Oxford Circus Station (0.2 mi)
Public transportation
Parking
Hotels
Public transportation
  • Bus Oxford Circus Stn / John Lewis (Stop OF) 0.1 mi
  • Bus New Bond Street (Stop OS) 0.1 mi
  • Bus Oxford Circus Station (Stop OH) 0.1 mi
Parking
  • Parking JustPark - Oxford St, London 0.1 mi
  • Parking Cavendish Square Car - 25 Holles St, London 0.1 mi
Hotels
  • Lowy Group 0.1 mi
  • 1 Dean’s Mews 0.1 mi
  • Westbury hotel 2YF 0.1 mi
  • The BoTree Hotel 0.1 mi

Prices and opening hours

Monday
7:30 – 22:00
from £300–£3400 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £3400 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 19:30
from £1600 hire fee per day
Peggy Nuttall Room
8:00 – 19:30
from £900 hire fee per day
Sarah Swift Room
8:30 – 19:30
from £660 hire fee per day
Jean McFarlane Room
8:00 – 19:30
from £660 hire fee per day
Marjorie Simpson Room
8:00 – 19:30
from £700 hire fee per day
Rosalind Paget Room
8:00 – 19:30
from £950 hire fee per day
Edith Cavell
8:00 – 19:30
from £700 hire fee per day
Mary Seacole Room
7:30 – 19:30
from £300 hire fee per day
Betsi Cadwaladr Room
8:00 – 19:30
from £300 hire fee per day
Florence Nightingale Room
8:00 – 19:30
from £300 hire fee per day
Mona Grey Room
8:00 – 19:30
from £700 hire fee per day
Tuesday
7:30 – 22:00
from £300–£4500 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £4500 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 19:30
from £1995 hire fee per day
Peggy Nuttall Room
8:00 – 19:30
from £1275 hire fee per day
Sarah Swift Room
8:30 – 19:30
from £880 hire fee per day
Jean McFarlane Room
8:00 – 19:30
from £880 hire fee per day
Marjorie Simpson Room
8:00 – 19:30
from £800 hire fee per day
Rosalind Paget Room
8:00 – 19:30
from £1275 hire fee per day
Edith Cavell
8:00 – 19:30
from £895 hire fee per day
Mary Seacole Room
7:30 – 19:30
from £300 hire fee per day
Betsi Cadwaladr Room
8:00 – 19:30
from £300 hire fee per day
Florence Nightingale Room
8:00 – 19:30
from £450 hire fee per day
Mona Grey Room
8:00 – 19:30
from £800 hire fee per day
Wednesday
7:30 – 22:00
from £300–£4500 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £4500 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 19:30
from £1995 hire fee per day
Peggy Nuttall Room
8:00 – 19:30
from £1275 hire fee per day
Sarah Swift Room
8:30 – 19:30
from £880 hire fee per day
Jean McFarlane Room
8:00 – 19:30
from £880 hire fee per day
Marjorie Simpson Room
8:00 – 19:30
from £800 hire fee per day
Rosalind Paget Room
8:00 – 19:30
from £1275 hire fee per day
Edith Cavell
8:00 – 19:30
from £895 hire fee per day
Mary Seacole Room
7:30 – 19:30
from £300 hire fee per day
Betsi Cadwaladr Room
8:00 – 19:30
from £300 hire fee per day
Florence Nightingale Room
8:00 – 19:30
from £450 hire fee per day
Mona Grey Room
8:00 – 19:30
from £800 hire fee per day
Thursday
7:30 – 22:00
from £300–£4500 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £4500 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 19:30
from £1995 hire fee per day
Peggy Nuttall Room
8:00 – 19:30
from £1275 hire fee per day
Sarah Swift Room
8:30 – 19:30
from £880 hire fee per day
Jean McFarlane Room
8:00 – 19:30
from £880 hire fee per day
Marjorie Simpson Room
8:00 – 19:30
from £800 hire fee per day
Rosalind Paget Room
8:00 – 19:30
from £1275 hire fee per day
Edith Cavell
8:00 – 19:30
from £895 hire fee per day
Mary Seacole Room
7:30 – 19:30
from £300 hire fee per day
Betsi Cadwaladr Room
8:00 – 19:30
from £300 hire fee per day
Florence Nightingale Room
8:00 – 19:30
from £450 hire fee per day
Mona Grey Room
8:00 – 19:30
from £800 hire fee per day
Friday
7:30 – 22:00
from £300–£3400 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £3400 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 19:30
from £1750 hire fee per day
Peggy Nuttall Room
8:00 – 19:30
from £1000 hire fee per day
Sarah Swift Room
8:30 – 19:30
from £770 hire fee per day
Jean McFarlane Room
8:00 – 19:30
from £770 hire fee per day
Marjorie Simpson Room
8:00 – 19:30
from £700 hire fee per day
Rosalind Paget Room
8:00 – 19:30
from £1115 hire fee per day
Edith Cavell
8:00 – 19:30
from £700 hire fee per day
Mary Seacole Room
7:30 – 19:30
from £300 hire fee per day
Betsi Cadwaladr Room
8:00 – 19:30
from £300 hire fee per day
Florence Nightingale Room
8:00 – 19:30
from £300 hire fee per day
Mona Grey Room
8:00 – 19:30
from £700 hire fee per day
Saturday
8:00 – 22:00
from £1275–£3400 hire fee per day
Cowdray Hall & Council Room
8:00 – 22:00
from £3400 hire fee per day
Annie Altschul/Agnes Hunt
8:00 – 17:00
from £2500 hire fee per day
Peggy Nuttall Room
8:00 – 17:00
from £1275 hire fee per day
Sarah Swift Room
8:30 – 17:00
from £2000 hire fee per day
Jean McFarlane Room
8:00 – 17:00
from £2000 hire fee per day
Marjorie Simpson Room
8:00 – 17:00
from £2000 hire fee per day
Rosalind Paget Room
8:00 – 17:00
from £2000 hire fee per day
Edith Cavell
8:00 – 17:00
from £2000 hire fee per day
Mona Grey Room
8:00 – 17:00
from £2000 hire fee per day
Sunday
Closed

Best Price guarantee: you will always pay the same price as booking directly with the venue, and we never add hidden or processing fees.

Facilities and catering options

Up to 200
standing
Up to 180
seats
In-house catering
Parking available
Promoted / ticketed events
Alcohol provided
External catering allowed
Accommodation available
BYO alcohol

Reviews and ratings

4.9
2 new reviews from verified users within the last 6 months
12 recent guests highly rated amenities, cleanliness, location and service quality
Amenities
4.9
Cleanliness
5.0
Location
5.0
Service quality
5.0
Value for money
4.6
Catering
4.4
Communication
4.9
Verified reviews come from Tagvenue users. All reviews are checked by our team to uphold our trust and safety standards.
AB
Alice B.
Verified review
Meeting · 16 guests · September 2025
Venue, staff, running of the event in general. All perfect
5.0
MB
Michelle B.
Verified review
Meeting · 20 guests · July 2025
The venue and the whole team were excellent. The venue is centrally located, light and airy, and the ambience was just wonderful. Special mention goes to the catering team for a very delicious lunch and treats for both our morning and afternoon breaks.
There was nothing we disliked about the venue at all.
5.0
NK
Natasha K.
Verified review
Conference · 60 guests · November 2024
I held a student conference at 20 Cavendish Square and the entire team were extremely welcoming and helpful through all of the steps, from first contact, to booking the venue, to helping us out on the day. Joey was an exceptional administrator and ensured the conference went smoothly for everyone. She was very approachable, friendly and efficient sith any requests that came up during the day. Will ran all of the AV facilities and made sure all of the requests were met. Perry, who was my initial contact on TagVenue also helped us throughout the day and was very friendly and helpful. The venue itself is beautiful and is in a great location. It is also fully accessible.
4.3
SH
Stacey H.
Verified review
Workshop · 35 guests · November 2024
Excellent communication, organisation, facilities and catering. Couldn't be happier!
5.0

About 20 Cavendish Square

20 Cavendish Square is a Trusted Tagvenue Partner, validated by the Tagvenue team with a record of successful bookings on the platform.

Our exquisite Grade II listed building, in central London W1, is a sophisticated blend of Georgian features and contemporary architecture. 20 Cavendish Square boasts state-of-the-art audio-visual equipment and offers a wide range of event spaces to suit any meeting, workshop, training session, conference, or drinks reception. All our meeting rooms are fully accessible and flooded with natural daylight. We also offer a fantastic choice of hospitality menus that can be customized to meet your exact needs. All food is prepared on-site using fresh ingredients of the highest quality and sourced locally whenever possible.
Conveniently located just behind John Lewis on Oxford Street, close to both Oxford Circus and Bond Street underground stations, 20 Cavendish Square is the perfect location.

FAQ

Cancellations 30 days in advance will receive a full refund.

Cancellations 30 days to 7 days in advance will receive a 50% refund.

Cancellations for events starting within 7 days are non-refundable.

Event date of a confirmed booking can be changed to another date within 3 months from the original date, at no cost.

At 20 Cavendish Square, the following catering options are available:

  • In-house catering service is available

  • Paid parking facilities are available nearby

Here are some event spends from guests who recently held events at 20 Cavendish Square:

  • Cowdray Hall & Council Room hosting 100 guests: £2880
  • Edith Cavell hosting 17 guests: £1597.60
  • Rosalind Paget Room hosting 35 guests: £1670.67
  • Marjorie Simpson Room hosting 30 guests: £661.47
  • Sarah Swift Room hosting 16 guests: £1659.20

For detailed pricing tailored to your event, please contact the venue.

20 Cavendish Square is located at 20 Cavendish Square, in the Marylebone, London district of London. The nearest metro station is Oxford Circus Station.

20 Cavendish Square is popular for

Private Dining Creative Space Function Room Corporate Event Filming Location Hall Conference Meeting Party Unusual Space Event Venues in Marylebone

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Tagvenue regularly reviews published venues to ensure the information is accurate and up to date. If you notice anything unusual in this listing, please report it.

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