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Top 21st Birthday Venues in Cardiff
Turning 21 is a milestone, so whether you’re planning a grand celebration with hundreds or a laid-back dinner with a few lucky friends, we’ve got you covered. Head to indie hangouts on Kelham Island for a fun night or cosy cocktail bars on West Street for a birthday happy hour. For a big birthday bash, explore the party halls in the city centre, or choose sunny rooftop terraces and beer gardens on Ecclesall Road for a summer celebration. These venues will guarantee you have a blast on your special day! Browse, compare, and shortlist the best 21st birthday venues in Cardiff. Once you find the perfect spot, seal the deal and get ready to party!
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![The Front Bar at Dirty Martini Cardiff in Cardiff Centre]()
from £500
minimum spend / per day -
![VIP Area at Dirty Martini Cardiff in Cardiff Centre]()
from £500
minimum spend / per session -
![Bar 3 at Bonnie Rogues Pub in Cardiff Centre]()
from £250
minimum spend / per session -
![Bar 4 at Bonnie Rogues Pub in Cardiff Centre]()
from £250
minimum spend / per session -
![The Matilda at Flight Club Cardiff in Cardiff Centre]()
from £2245
minimum spend / per session -
![Private Dining Room at Gaucho Cardiff in Cardiff Centre]()
from £1000
minimum spend / per afternoon -
![Upper Level at Be At One Cardiff in Cardiff Centre]()
from £250
minimum spend / per session -
![Havana Bar at Revolucion De Cuba Cardiff in Cardiff Centre]()
from £500
minimum spend / per evening -
![Upstairs at Par 59 Cardiff in Cardiff Centre]()
from £30
per person / per session -
![Rhythm Room at Walkabout Cardiff in Cardiff Centre]()
from £250
minimum spend / per session -
![Full Venue Hire at Walkabout Cardiff in Cardiff Centre]()
from £2000
minimum spend / per session -
![Downstairs at Par 59 Cardiff in Cardiff Centre]()
from £30
per person / per session
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FAQs about 21st Birthday Venues in Cardiff
What should I consider when choosing a birthday venue?
Consider capacity, location, and atmosphere when selecting a venue for your 21st birthday party. Think about whether you want a lively party or something more private. For a comprehensive guide on choosing the right venue, check out our How to Choose a Venue guide, which covers everything from budget to amenities.
What does the venue booking price include?
Venue booking prices normally include the use of the space for your event, basic furniture (like tables and chairs), and sometimes access to AV equipment. Additional services, such as catering or decoration, may incur extra costs, so it's essential to clarify what's included in the price with the venue manager when booking your venue.
What are some of the best places for a small 21st party in Cardiff?
- Dirty Martini Cardiff: A stylish cocktail bar perfect for a chic birthday soiree. It has a standing capacity of 50 and is ideal for celebrations with close friends and family.
- Bonnie Rogues Pub: This cosy and lively pub can accommodate up to 40 seated guests. It is great for late-night birthday parties and offers delicious burgers and drinks.
- Be At One Cardiff: This lively chain bar is great for small groups of 30 guests looking to enjoy a fun cocktail experience. You can add a cocktail masterclass to your b-day celebrations to make your event extra special.
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