Space facilities
Wi-Fi
• Projector
• Flatscreen TV
• Whiteboard
• Flipchart
• PA system / speakers
Upstairs Room at O'Neill's St Mary Street Cardiff
About this space
Our first-floor space at O'Neill's St Mary Street is the ideal venue for any occasion—whether it's a meeting, an all-day conference, a Christmas or engagement party, a milestone birthday, a networking event, a live music night, or even stand-up comedy. With a capacity of up to 300 standing, the room features a private bar, multiple screens, a projector, a flip chart, and a full PA system.
This flexible venue can be tailored to suit any event, whether you're hosting a daytime meeting, evening celebration (birthday, engagement or graduation party), pre-concert gathering, sports screening, or live music night. Enhance the experience with a buffet or drinks reception. The upstairs room also features a private entrance, adding an exclusive touch. Whatever the occasion, O'Neill's St Mary Street has you covered.
*Please note this is not an accessible space, step access*
Offers and packages
Menus
Prices
Capacity
Catering and drinks
Facilities
Music & sound equipment
Accessibility
Rules of the space
Allowed events
Age policy
Guests under 18 are not allowed after 17:00
Host rules
-No smoking inside the building
-BYO bottle alcohol not allowed
-Unfortunately, the venue does not accept funerals or wakes
-Any damage to, or theft of, property at the Host Venue (including, but not limited to, music equipment, furniture, fixtures and fittings, and any other property of the Host Venue) caused during the event times on the event date is your responsibility and will be charged to you at full replacement cost
-No 18th Birthday Parties
Cancellation policy: Standard 30 day
O'Neill's St Mary Street Cardiff is a Trusted Tagvenue Partner, validated by the Tagvenue team with a record of successful bookings on the platform.
Location
Meet your host
Contact venue managers directly on Tagvenue. Keep all event communication on the platform for a secure, seamless booking.
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