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Top Function Rooms in Cardiff
Cardiff has an excellent selection of function rooms suitable for any occasion. If you’re planning a wedding, corporate event, or simply a casual party, the city centre offers many attractive event spaces near Cardiff Castle and along the bustling streets of Cathays. Alternatively, waterfront venues with flexible layouts and modern amenities in Cardiff Bay are another marvellous pick for your gathering. Whether you need a large hall for a banquet or a smaller room for a family get-together, you can find a fitting venue in the city for all types of events. Just start browsing Tagvenue’s offerings and see how easy it is to book a perfect function room.
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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
70 guestsO'Neill's Trinity Street CardiffCardiff Centre
#Supervenue
CChristopher W.
“Great size venue for our party and brilliant location.” -
![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. -
![Conservatory at Brewhouse & Kitchen - Cardiff in Cardiff Outskirts]()
from £1500
minimum spend / per afternoonCheck availabilityConservatory
70 guestsBrewhouse & Kitchen - CardiffCardiff OutskirtsBrewhouse & Kitchen in Cardiff is a brewpub located next to River Taff. It's a nice venue for functions and events - from two large gardens and an airy conservatory with garden access to smaller bookable areas like the Fire -
![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. -
![Upstairs Room at O'Neill's St Mary Street Cardiff in Cardiff Centre]()
from £400
minimum spend / per sessionCheck availabilityUpstairs Room
300 guestsO'Neill's St Mary Street CardiffCardiff CentreWith plenty of TVs and a dedicated function room, you’ll never miss a moment of the action. Looking for something more private? Our second floor has it all—your own bar, private toilets, screens, projectors, and flexible -
![Second Floor & Terrace at The Botanist Cardiff Central in Cardiff Centre]()
from £38
per person / per sessionCheck availabilitySecond Floor & Terrace
200 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
Located on the top floor of the venue with a beautiful inside setting perfect for socialising with also access to The Terrace and a private bar. This would be completely private. -
![Cabin 1 at Lo Lounge in Cardiff]()
from £80
hire fee / per afternoonCheck availabilityCabin 1
45 guestsLo LoungeCardiff
#Supervenue
With direct access to the outdoor bar and stunning Cardiff Bay views, they’re perfect for both business and leisure. Book your private space today! -
![The Greenhouse at The Botanist Cardiff Central in Cardiff Centre]()
from £38
per person / per sessionCheck availabilityThe Greenhouse
30 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
Sectioned off from the main restaurant for that private feel and perfect for larger get togethers or business meals. Full of ivy and twinkling lights to give that warm feel. -
![Private Dining Room at The Botanist Cardiff Central in Cardiff Centre]()
from £38
per person / per sessionCheck availabilityPrivate Dining Room
12 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
One of the most popular places in Cardiff with their beautiful Rooftop Terrace. The Botanist is a botanical restaurant on Church Street, serving international inspired dishes, hosting live music and beautiful cocktails. -
![Dunraven/Holder Suite at Future Inn Cardiff Bay in Cardiff Outskirts]()
from £1000
hire fee / per dayCheck availabilityDunraven/Holder Suite
200 guestsFuture Inn Cardiff BayCardiff OutskirtsThe Dunraven and Holder combined make up the largest function suite at the Hotel. The suite benefits from lots of natural daylight and air conditioning. -
![The Main Inside at Lo Lounge in Cardiff]()
from £400
hire fee / per afternoonCheck availabilityThe Main Inside
100 guestsLo LoungeCardiff
#Supervenue
With a shabby chic decor and inviting atmosphere, this space is ideal for private parties, corporate functions, live entertainment, comedy nights, and more. -
![Rhythm Room at Walkabout Cardiff in Cardiff Centre]()
from £250
minimum spend / per sessionCheck availabilityRhythm Room
50 guestsWalkabout CardiffCardiff CentreElevate your next event in our stylish private function room, designed for both intimate gatherings and larger celebrations. With a standing capacity of 150 and seating for up to 70, the Rhythm Room is the perfect venue for
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FAQs about Top Function Rooms in Cardiff
The cost of function rooms in Cardiff averages around £500 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 October 2025:
| From £225 | to £600 | hire fee per event |
| From £250 | to £1500 | minimum spend per event |
| From £35 | per person |
Based on the popularity and user ratings on Tagvenue (updated October 2025), 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...’ -
Cabin 1 at Lo Lounge in Cardiff - rated 5/5
Venue said: Lo Lounge’s private shipping containers offer a stylish and versatile space for events, meetings, or celebrations. Each container seats up to 45 guests and includes heating, cozy blankets, and a mini fridge stocked with drinks. -
Second Floor & Terrace at The Botanist Cardiff Central in Cardiff Centre - rated 4.8/5
Venue said: We charge full price for The Terrace, where all payments would go towards an exceptional buffet welcome drink and a bar tab with an option to include extras from live music, DJ, and cocktail masterclasses.
You'll find function rooms in various sizes, from smaller spots to larger venues; keep in mind that the type of space and your chosen layout will affect the capacity! Below you can see the typical venue sizes in Cardiff, together with the standard prices in each size range, based on Tagvenue data (October 2025):
| Small function rooms | up to 50 guests | prices average £50 hire fee per hour |
| Medium function rooms | between 70 and 130 guests | prices average £1500 minimum spend per event |
| Large function rooms | over 200 guests | prices average £600 hire fee per event |
Cardiff has a wide variety of function rooms tailored for events. These include:
- Hotel Function Rooms: Ideal for corporate events, weddings, and large gatherings, these venues often come with catering services, audio-visual equipment, and accommodation options.
- Conference Venues: These rooms are equipped with the latest technology, including projectors, sound systems, and Wi-Fi, making them a place to be for business meetings, workshops, and seminars.
- Private Dining Rooms: Perfect for personal events, these spaces offer a more exclusive setting, often in top-notch restaurants or hotels.
- Banquet Halls: Suitable for large events such as weddings, banquets, or formal dinners, halls typically feature grand decor, ample seating, and catering options.
- Private Dining Room at Gaucho Cardiff on Bridge Street is perfect for gatherings with family or friends, accommodating up to 26 guests. This venue is committed to sustainability, making it a great spot for eco-conscious diners.
- Club Room at Revolution Cardiff at 9-11 Castle Street is ideal for hosting quiz nights, networking events, and Christmas parties. With a capacity of up to 400 guests for casual events or 120 for seated dining, it’s well-equipped with a full AV system and a large dance floor, ensuring a lively party.
