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Top Birthday Party Venues for Adults in Cardiff
Another trip around the sun deserves something better than a crowded corner table. Birthday party venues for adults in Cardiff include stylish cocktail bars along St Mary Street, elegant private dining rooms, and exclusive spaces around Cardiff Bay where the celebrations don't have to end after dessert. Milestone birthdays call for somewhere with a little more character, whether you're planning a relaxed dinner, a lively drinks reception, or a dance floor that stays busy well into the night. Take a look below and find the party space that suits your celebration.
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![PARTY AND EVENT VENUE at DNC BAR in Cardiff Centre]()
from £100
hire fee / per sessionCheck availabilityPARTY AND EVENT VENUE
120 guestsDNC BARCardiff Centre
#Supervenue
BBella H.
“The venue was a great size, places to sit down, could connect to the speaker” -
![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.” -
![Rockpools Dining Area at The Botanist Cardiff Bay in Cardiff]()
from £800
minimum spend / per sessionCheck availabilityRockpools Dining Area
30 guestsThe Botanist Cardiff BayCardiffHHelena K.
“28 of us celebrated a special birthday at the rock pool area. Food and drinks were lovely.” -
![Ricoh Suite at Cardiff City Stadium in Cardiff Outskirts]()
from £235
hire fee / per sessionCheck availabilityRicoh Suite
750 guestsCardiff City StadiumCardiff OutskirtsAAlun J.
“Splendid venue and excellent support from the duty staff and the events planner.” -
![Bar 4 at Bonnie Rogues Pub in Cardiff Centre]()
from £250
minimum spend / per sessionCheck availabilityBar 4
250 guestsBonnie Rogues PubCardiff Centre
#Supervenue
AAngela D.
“The area was perfect for our event. Easy access to the bar.” -
![Private Dining Room at The Botanist Cardiff Central in Cardiff Centre]()
from £300
minimum spend / per sessionCheck availabilityPrivate Dining Room
12 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
MMaggie N.
“Great private dinning space which allowed us to be comfortable with our mixed group which included toddlers.” -
![Conservatory (2nd Floor) Bar at The Botanist Cardiff Central in Cardiff Centre]()
from £1000
minimum spend / per sessionCheck availabilityConservatory (2nd Floor) Bar
90 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
WWendy
“The atmosphere very good and topped with beautiful weather. The manager on the night was helpful and friendly.” -
![The Green Room at The Piano Works Cardiff in Cardiff Centre]()
from £500
minimum spend / per eveningCheck availabilityThe Green Room
70 guestsThe Piano Works CardiffCardiff CentreThe Green Room is a private bar in The Piano Works Cardiff, defined by a compact, semi-private layout and theatrical styling. Design: The room pairs bold black-and-white striped flooring with jewel-toned velvet banquettes, -
![Bar 3 at Bonnie Rogues Pub in Cardiff Centre]()
from £250
minimum spend / per sessionCheck availabilityBar 3
120 guestsBonnie Rogues PubCardiff Centre
#Supervenue
MMartina F.
“Excellent space! In the mix so we still benefitted from the atmosphere of the bar, and easy access to drinks.” -
![The Greenhouse at The Botanist Cardiff Central in Cardiff Centre]()
from £500
minimum spend / per sessionCheck availabilityThe Greenhouse
30 guestsThe Botanist Cardiff CentralCardiff Centre
#Supervenue
IIwan S.
“Great little space, set off from the main restaurant. Worked great for our family celebration.” -
![Upper Level at Be At One Cardiff in Cardiff Centre]()
from £250
minimum spend / per sessionCheck availabilityUpper Level
100 guestsBe At One CardiffCardiff CentreAt Be At One Cardiff, our Upper Level offers the perfect space for your next private event. Whether you’re hosting a corporate function, a birthday celebration, or a festive Christmas party, this exclusive area provides a -
![Full Venue Hire at Tonight Josephine Cardiff in Cardiff Centre]()
from £500
minimum spend / per sessionCheck availabilityFull Venue Hire
250 guestsTonight Josephine CardiffCardiff CentreTonight Josephine Cardiff offers a unique event and party space that spans two floors, and is the first bar to sport Josephine’s newest look. With updated neons, daring green hues and disco balls galore – it’s the ideal hangout
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FAQs about Top Birthday Party Venues for Adults in Cardiff
Booking costs of birthday party venues for adults average £800 minimum spend per event. Costs vary depending on guest capacity, popularity, location, and amenities like sound systems or bar services. Extra charges may apply for custom catering, decor, or event planning services. Packages with add-ons, such as DJs, photo booths, or other entertainment services, can also increase the overall cost. Check out the typical price ranges in Cardiff, based on Tagvenue data:
| From £300 | to £1600 | minimum spend per event |
| From £14 | to £35 | per person |
| From £85 | to £235 | hire fee per event |
Based on the popularity and user ratings on Tagvenue (updated October 2026), the best options include:
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Viewing Deck at Lo Lounge in Cardiff - rated 5/5
Our user said: ‘Location was great over looking the bay. Would highly recommend booking this venue.’ -
Ricoh Suite at Cardiff City Stadium in Cardiff Outskirts - rated 5/5
Our user said: ‘Thank you for making it such a special occasion.’ -
PARTY AND EVENT VENUE at DNC BAR in Cardiff Centre - rated 4.8/5
Our user said: ‘Staff were fantastic, venue is perfect for an 18th party.’
You'll find birthday party venues for adults 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 2026):
| Small | up to 50 guests | prices average £80 hire fee per event |
| Medium | between 60 and 120 guests | prices average £500 minimum spend per event |
| Large | over 160 guests | prices average £1500 minimum spend per event |
These are the venues within 0.1 mi from central Cardiff, available to book on Tagvenue:
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Full Venue Hire at Slug and Lettuce Cardiff Central
on 84 Saint Mary Street - 0.1 mi from centre.
Venue said: Best for: Group brunch bookings and bottomless-brunch gatherings; cocktail receptions and after-work socials; promoted or ticketed party nights. Location: Cardiff city centre on the city's main hospitality strip. -
Full Venue Hire at The Cocktail Club Cardiff
on 75 Saint Mary Street - 0.1 mi from centre.
Venue said: What sets it apart: Permission to hire an external DJ gives hosts direct control over the venue's music for private events. -
Full Venue Hire at Popworld Cardiff
on 96 Saint Mary Street - 0.1 mi from centre.
Venue said: Popworld is a retro-themed nightclub defined by bold pop-art décor. Design: The interior arranges compact booths, mixed-height seating and pendant lighting to create an intimate, energetic layout.
Based on Tagvenue data (as of October 2026), users looking for birthday party venues for adults most commonly go for these venue types:
| Bar | prices average £500 minimum spend per event | typically between 80 and 400 guests |
| Event Space | prices average £125 hire fee per event | typically between 40 and 100 guests |
| Restaurant | prices average £300 minimum spend per event | typically between 25 and 70 guests |
| Cocktail Bar | prices average £150 hire fee per event | typically between 60 and 100 guests |
| Pub | prices average £250 minimum spend per event | typically between 60 and 180 guests |
Smaller birthday party venues for adults usually fit up to 50 guests standing. Here are some great options in Cardiff, based on Tagvenue data as of October 2026:
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Birthday Party at Roxy Lanes - The Friary, Cardiff - lounge for 50 guests
Venue said: Best for: Group social nights, stag and hen parties, corporate team-building sessions. Location: Queen Street sits within Cardiff city centre's shopping and nightlife corridor, giving hosts straightforward options for after-event... -
Cabin 1 at Lo Lounge, rated 5/5 - event space for 45 guests
Venue said: Lo Lounge is a bar-café and events venue that combines American-style food and drink with a multi-area layout centred on indoor lounges and a large outdoor terrace. -
The Mr. Fox at Flight Club Cardiff - event space for 45 guests
Venue said: Flight Club Cardiff is a social darts bar that modernises darts with digital, multiplayer oche games across several levels. Venue highlights: The venue provides bookable, high-tech darts oche areas designed for fast-paced...
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Page last updated in October 2026
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