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Top Small Function Rooms in Cardiff
Not every occasion needs a huge guest list to feel special. Small function rooms in Cardiff are a popular choice for birthday lunches, private dinners, family celebrations, and business gatherings where everyone can actually sit around the same table. Around Cardiff Bay, St Mary Street, and the city centre, you'll find private dining rooms, event spaces, and function suites suited to smaller groups. Many strike the right balance between privacy and atmosphere, making them ideal for occasions that call for something a little more personal. Take a look through the listings and find a room that works.
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![Private Upstairs Room at O'Neill's Trinity Street Cardiff in Cardiff Centre]()
from £200
minimum spend / per sessionCheck availabilityPrivate Upstairs Room
100 guestsO'Neill's Trinity Street CardiffCardiff Centre
#Supervenue
CChristopher W.
“Great size venue for our party and brilliant location.” -
![Chairman’s Lounge at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityChairman’s Lounge
70 guestsCardiff City StadiumCardiff OutskirtsAAlun J.
“Splendid venue and excellent support from the duty staff and the events planner.” -
![Roald Dahl Suite at voco St David's Cardiff in Cardiff]()
from £35
per person / per dayCheck availabilityRoald Dahl Suite
250 guestsvoco St David's CardiffCardiffLocated on the first floor with floor to ceiling windows and views overlooking Cardiff Bay. The room has stairs and lift access. The room has natural daylight and air-conditioning. -
![Emma & Enniston at Future Inn Cardiff Bay in Cardiff Outskirts]()
from £630
hire fee / per sessionCheck availabilityEmma & Enniston
130 guestsFuture Inn Cardiff BayCardiff OutskirtsThis is a hotel in Cardiff Bay. It offers easy access to the city centre and good transport links. The events centre includes six meeting and event spaces All of them are located on the ground floor. -
![Private Event Space at The Welsh House Cardiff in Cardiff Centre]()
from £30
per person / per sessionCheck availabilityPrivate Event Space
96 guestsThe Welsh House CardiffCardiff CentreAn independent regional restaurant & bar situated idyllically adjacent to Cardiff Castle. We boast an exceptional private function room equipped with sound systems and a private bar. -
![Holder at Future Inn Cardiff Bay in Cardiff Outskirts]()
from £360
hire fee / per sessionCheck availabilityHolder
80 guestsFuture Inn Cardiff BayCardiff OutskirtsHolder is a larger and adaptable space for conferences, workshops, and team events. With 65 sqm of room, you can host seminars with 80 guests theatre-style. -
![Corner Suites at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityCorner Suites
70 guestsCardiff City StadiumCardiff OutskirtsBoth the Heineken Lounge and the Legends Suite are multifunctional spaces that can adapt to various occasions, from celebratory events to post-conference gatherings. -
![Fred Keenor Suite at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityFred Keenor Suite
50 guestsCardiff City StadiumCardiff OutskirtsComplemented by complimentary Wi-Fi and air conditioning, this space caters to those seeking a simple yet effective venue for their next event. Its functional setup and essential amenities make it a versatile choice for various -
![Room at Ty Mawr The Barn in Cardiff]()
from £11
per person / per sessionCheck availabilityRoom
100 guestsTy Mawr The BarnCardiffA full-height arched window at the far end of the room provides a strong architectural focal point and frames views to the outside. -
![Captain's Lounge at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityCaptain's Lounge
100 guestsCardiff City StadiumCardiff OutskirtsThe presence of staging capabilities offers the flexibility to accommodate presentations, performances, or speeches, adding a dynamic element to the venue. -
![Premier Lounge at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityPremier Lounge
600 guestsCardiff City StadiumCardiff OutskirtsThe space caters to receptions for up to 600 guests, a theatre-style setting accommodating 450 attendees, and dinners or banquets for 250 guests, ensuring adaptability for a wide array of occasions. -
![Downstairs Section at O'Neill's Trinity Street Cardiff in Cardiff Centre]()
from £5
per person / per sessionCheck availabilityDownstairs Section
40 guestsO'Neill's Trinity Street CardiffCardiff Centre
#Supervenue
DDaniel H.
“Venue was great size, bar staff were brilliant”
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FAQs about Top Small Function Rooms in Cardiff
The cost of small function rooms averages around £800 minimum spend per event. The final price will depend on location, size, amenities, and demand. Some venues also offer additional packages that include catering, AV equipment, or additional services. Take a look at the usual price ranges in Cardiff, based on Tagvenue data from July 2026:
| From £400 | to £1500 | minimum spend per event |
| From £34 | per person | |
| From £235 | hire fee per event |
These are the venues within 0.2 mi from central Cardiff, available to book on Tagvenue:
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Upstairs Room at O'Neill's St Mary Street Cardiff
on 85-87 St Mary St, Cardiff - 0.1 mi from centre.
Venue said: 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*... -
The Green Room at The Piano Works Cardiff
on Imperial Gate, St Mary Street - 0.1 mi from centre.
Venue said: Renowned for its high-energy live music and stylish, versatile space, The Piano Works Cardiff offers a truly unique setting for corporate events and special occasions that make an impact. -
Full Venue at Ludo Cardiff
on 117 Saint Mary Street - 0.2 mi from centre.
Venue said: Features include a sound system, venue-wide HD screens, and one of Cardiff's larger outdoor event spaces. Located on St Mary Street, a short walk from Cardiff Central Station, Ludo Cardiff is in central Cardiff.
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Page last updated in July 2026
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