30th Birthday Party Venues for Hire in Cardiff

Booking costs of 30th birthday party venues average £500 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:

Based on the popularity and user ratings on Tagvenue (updated October 2026), the best options include:

• 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.’

• PARTY AND EVENT VENUE at DNC BAR in Cardiff Centre - rated 4.8/5
  Our user said: ‘The venue was a great size, places to sit down, could connect to the speaker...’

• Bar 1 at Bonnie Rogues Pub in Cardiff Centre - rated 4.7/5
  Our user said: ‘In the mix so we still benefitted from the atmosphere of the bar, and easy access to drinks.’

You'll find 30th birthday party venues 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):

These are the venues within 0.1 mi from central Cardiff, available to book on Tagvenue:

• 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.’
• Top Bar at Slug and Lettuce Cardiff Central on 84 Saint Mary Street - 0.1 mi from centre.
  Venue said: Slug and Lettuce Cardiff Central is a cocktail-focused bar housed in a stone-fronted, historic building that pairs contemporary interiors with a menu of cocktails and global classics.
• The Gallery (Upstairs) at The Cocktail Club Cardiff on 75 Saint Mary Street - 0.1 mi from centre.
  Venue said: The top floor bar ‘The Gallery’ – the hottest spot in Cardiff to throw your next serious soiree in.

Based on Tagvenue data (as of October 2026), users looking for 30th birthday party venues most commonly go for these venue types:

Smaller 30th birthday party venues usually fit up to 45 guests standing. Here are some great options in Cardiff, based on Tagvenue data as of October 2026:

• Cabin 1 at Lo Lounge, rated 5/5 - event space for 45 guests
  Venue said: The interior feels compact and functional, and large service openings allow plentiful daylight into the space. Features: A built-in PA system and speakers are provided, and the hire permits playing your own music or bringing...

• 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...

• Reserve Area at The Piano Works Cardiff, rated 5/5 - event space for 40 guests
  Venue said: It works for corporate socials, networking events, birthdays, and celebrations. The area provides seating and easy access to the bar. Whether it's after-work drinks or a larger gathering, the Reserved Area gives guests space...

Cheap 30th birthday party venues in Cardiff start from £250 minimum spend per event or £80 hire fee per event. Check out these budget-friendly spaces you can book through Tagvenue, as of October 2026:

• Bar 4 at Bonnie Rogues Pub, from £250 minimum spend per event (up to 250 guests standing)
  Our user said: ‘Easy access to the bar. The staff looked after us, and we all had a good time.’

• Cabin 2 at Lo Lounge, from £80 hire fee per event (up to 55 guests standing)
  Venue said: Plus, with direct access to our outdoor bar, your event is set for a great time. Book now and enjoy a stunning Cardiff Bay backdrop!

• Private Room in A Lounge at Wow Lounge Cardiff, from £15 hire fee per hour (up to 25 guests standing)
  Venue said: Our lounge provides a setting for intimate gatherings, private parties, or VIP events. A capacity for up to 20 guests. We have plush seating and lovely lighting that sets the mood.

Consider restaurants, function rooms, or bars for a birthday party with friends and family if you want to spend a few hours celebrating. Warehouses offer flexibility and are great for larger events at a more affordable price than restaurants; however, you'll likely need to arrange catering. In the summer, outdoor spaces like gardens or patios are perfect for tropical-themed birthdays, picnics, or happy hours with friends.

There are several things to consider when planning a birthday, such as the type of event you want, such as dinner, dance or casual gathering. Think about the guest list size and what the birthday celebrant enjoys. Don't forget to plan for entertainment and accessibility, and choose a convenient location.

Check out our Ultimate Birthday Party Planning Guide for all the tips you need!