22 Duchess Mews, home of the Cavendish Conference Centre, is in Marylebone itself: a tiered 250-seat auditorium and four flexible rooms on a quiet mews off Portland Place. For delegates arriving at Marylebone station it is about a 15-minute walk, or two stops on the Bakerloo line to Regent’s Park and four minutes on foot. Our second West End venue, Hallam Conference Centre at 44 Hallam Street, is a few minutes further east.
Marylebone is the London terminus for Chiltern Railways, with direct trains from Birmingham Moor Street, Oxford, High Wycombe and Aylesbury, and it is on the Bakerloo line. That makes it the natural arrival point for delegates coming in from the Chilterns and the West Midlands.
On foot, leave the station onto Marylebone Road and head east towards Regent’s Park and Portland Place, then turn south down Portland Place and left into Duchess Street; Duchess Mews is the cobbled turning on the left. It takes about 15 minutes. If the weather is against you, take the Bakerloo line two stops to Regent’s Park, which is four minutes from the door. Baker Street, one stop away, connects to the Jubilee, Metropolitan, Circle and Hammersmith & City lines.
22 Duchess Mews is built around its tiered auditorium — 250 seats with a clear sightline to the stage for every delegate — with four flexible rooms alongside for breakouts, boardroom sessions and speaker preparation. It suits AGMs, results presentations, association conferences and academic lectures, where the room needs to feel like a proper conference venue rather than a hotel function suite. For larger programmes or parallel streams, 44 Hallam Street adds eight more rooms a few minutes’ walk away. Floorplans and full room lists are on the 22 Duchess Mews and 44 Hallam Street venue pages.
The area around Marylebone is professional-services country: the medical royal colleges and Harley Street specialists to the north, the media, advertising and marketing agencies of Fitzrovia to the east, the University of London on Bloomsbury's edge, and the fashion, retail and beauty press offices around Bond Street to the south. The organisations here book us for AGMs and results presentations, graduate intakes and training programmes, exam sittings, product launches, press days, hybrid conferences and academic and charity conferences — for which a discounted rate applies.
Catering is in-house, by Mayfair Catering, from arrival coffee to a seated dinner, with canapés for drinks receptions from our sister company City Canapé Company. In our post-event survey 97% of clients rated their overall event 8 or more out of 10. Cavendish Venues is a Certified B Corporation, and took Gold for Best Venue Customer Service and Silver in the Sustainability Award for Venues at the Conference Awards 2026.
Delegates staying overnight have a good choice of hotels within a ten-minute walk of both venues, from The Langham on Portland Place through to the properties around Marylebone High Street. Our HotelMap pages show live rates: HotelMap for 44 Hallam Street and HotelMap for 22 Duchess Mews. Charlotte Street, Marylebone High Street and Marylebone Village have restaurants and bars within five minutes in every direction. Ask the venue team on the day — they know which is quiet at 6pm and which takes a table of twenty.
The West End set is completed by our other West End venue — see the West End conference venues page. For a conference in the Square Mile, we have three conference venues in the City of London: 1 Basinghall Avenue (450 seats, Moorgate), The Minster Building (350 seats, Fenchurch Street) and 1 America Square (270 seats, Tower Hill). Our London conference venues page covers all five.
Tell us the date, the numbers and the shape of the day and we will come back with a proposal the same working day. Call 020 7706 7700 or use the enquiry form.
About 15 minutes on foot: east along Marylebone Road, south down Portland Place and left into Duchess Street. Or take the Bakerloo line two stops to Regent’s Park, which is four minutes from the venue.
Chiltern Railways services from Birmingham Moor Street, Oxford, High Wycombe and Aylesbury, plus the Bakerloo line. Baker Street, one stop away, adds the Jubilee, Metropolitan, Circle and Hammersmith & City lines.
Yes. It sits on a quiet mews off Duchess Street, between Portland Place and Marylebone High Street, in W1G.
Up to 250 theatre-style in the tiered auditorium at 22 Duchess Mews, and up to 250 at 44 Hallam Street.
Yes. Our in-house technical team runs the cameras, encoding and streaming for hybrid and virtual events, so remote delegates see and hear the same conference as the room.
Our day delegate rate includes catering by Mayfair Catering, our in-house team, and canapés for a drinks reception can come from our sister company City Canapé Company. Ask for the DDR when you enquire, and for the charity or academic rate if it applies.
Almost everyone arrives by train: both West End venues are inside the Congestion Charge and ULEZ zones. If you need to bring equipment or exhibition stands by van, tell us when you book and we will arrange access.
Our accessibility page describes access to each venue; tell us what your delegates need and we will confirm before you book.
Of course — and both West End venues can be seen in one morning. Call 020 7706 7700 to arrange it.
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