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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.” -
![Fred Keenor Suite at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityFred Keenor Suite
50 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. -
![Holder at Future Inn Cardiff Bay in Cardiff Outskirts]()
from £360
hire fee / per sessionCheck availabilityHolder
80 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. -
![Emma & Enniston at Future Inn Cardiff Bay in Cardiff Outskirts]()
from £630
hire fee / per sessionCheck availabilityEmma & Enniston
130 guestsFuture Inn Cardiff BayCardiff OutskirtsThe space fits up to 130 guests for professional or informal occasions. The room can also be split in two smaller rooms and also has a built in Private bar for evening events. -
![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. -
![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. -
![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. -
![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. -
![Chairman’s Lounge at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityChairman’s Lounge
70 guestsCardiff City StadiumCardiff OutskirtsThese spaces are designed with flexibility in mind, allowing for personalized adjustments to create the ideal atmosphere for discussions, private meetings, or exclusive experiences. -
![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” -
![Viewing Deck at Lo Lounge in Cardiff]()
from £125
hire fee / per afternoonCheck availabilityViewing Deck
120 guestsLo LoungeCardiffLLisa K.
“They would hard all night. Location was great over looking the bay. Would highly recommend booking this venue.”
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FAQs about Top Small Function Rooms in Cardiff
The cost of small function rooms averages around £250 hire fee 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 £235 | to £500 | hire fee per event |
| From £34 | per person | |
| From £400 | to £1500 | minimum spend per event |
Based on the popularity and user ratings on Tagvenue (updated September 2026), the best options include:
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Private Upstairs Room at O'Neill's Trinity Street Cardiff in Cardiff Centre - rated 5/5
Our user said: ‘Venue was great size, bar staff were brilliant...’ -
Fred Keenor Suite at Cardiff City Stadium in Cardiff Outskirts - rated 5/5
Our user said: ‘Splendid venue and excellent support from the duty staff and the events planner.’ -
Viewing Deck at Lo Lounge in Cardiff - rated 5/5
Our user said: ‘Great communication throughout booking process. Fantastic price for a venue in The Bay. Fantastic decor.’
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.
Our user said: ‘What I liked about the place we rented was the great location, fantastic atmosphere, and friendly staff.’ -
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.
Cheap small function rooms in Cardiff start from £200 minimum spend per event or £125 hire fee per event. Check out these budget-friendly spaces you can book through Tagvenue, as of September 2026:
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Private Upstairs Room at O'Neill's Trinity Street Cardiff, from £200 minimum spend per event (up to 100 guests standing)
Our user said: ‘Venue was great size, bar staff were brilliant...’ -
Viewing Deck at Lo Lounge, from £125 hire fee per event (up to 120 guests standing)
Our user said: ‘Great communication throughout booking process. Fantastic price for a venue in The Bay. Fantastic decor.’ -
Function Room at Fairwater Hotel, from £10 per person (up to 50 guests standing)
Venue said: The Function Room at Fairwater Hotel is a spacious, traditional setting that can be adapted for everything from community meetings and group meals to relaxed celebrations.
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Page last updated in September 2026
To provide you with relevant information, our pages are refreshed using an algorithm that aggregates real-time data, including bookings, reviews, and venue updates.