40th Birthday Venues for Hire in Cardiff

Booking costs of 40th birthday 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.’

• Birthday Party 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: ‘The venue was a great size, places to sit down, could connect to the speaker...’

You'll find 40th birthday 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.’
• Tiger Bar- Ground Floor at The Cocktail Club Cardiff on 75 Saint Mary Street - 0.1 mi from centre.
  Venue said: The Tiger Bar has its own private bar, giving groups a separate setting while still being part of the wider venue.
• Bar 3 at Bonnie Rogues Pub on 42-43 St Mary Street - 0.1 mi from centre.
  Our user said: ‘Excellent space! In the mix so we still benefitted from the atmosphere of the bar, and easy access to drinks.’

Based on Tagvenue data (as of October 2026), users looking for 40th birthday venues most commonly go for these venue types:

Smaller 40th birthday venues usually fit up to 45 guests standing. Here are some great options in Cardiff, based on Tagvenue data as of October 2026:

• The Golden Ticket at Flight Club Cardiff - event space for 45 guests
  Venue said: The Golden Ticket is a semi-private area in Flight Club Cardiff, a boothed, wood-panelled social seating bay that provides an intimate, segregated space for small groups.

• The Yellow Bedroom at Neighbourhood Bedrooms - creative space for 8 guests
  Venue said: Situated just an 8-minute walk from Cardiff city centre and the Principality Stadium, the Yellow Room offers easy access for teams, creators, and clients.

• Reserve Area at The Piano Works Cardiff, rated 5/5 - event space for 40 guests
  Venue said: An iconic venue located in Cardiff, The Piano Works sets the stage for an event you won't forget. Our Cardiff venue will host up to 700 live music lovers in one electrifying space with our iconic duelling pianos at the heart...

Cheap 40th birthday venues in Cardiff start from £250 minimum spend per event or £10 per person. 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: ‘Excellent space! In the mix so we still benefitted from the atmosphere of the bar, and easy access to drinks.’

• Downstairs at Prego Wine Bar, from £10 per person (up to 72 guests standing)
  Venue said: The downstairs at Prego Wine Bar can host up to 45 guests. This space is fit for smaller gatherings. There are couches and tables available.

• Cabin 1 at Lo Lounge, from £80 hire fee per event (up to 45 guests standing)
  Venue said: Cabin 1 is an Event Space in Lo Lounge, a sheltered private cabin that opens directly onto a timber deck and outdoor seating area. Design: The cabin has a maritime-industrial appearance, featuring painted corrugated panels,

• Start choosing the type of celebration you want. Consider the size of your guest list and the atmosphere you're aiming for – is it going to be a family gathering in a private dining room like the one at Gaucho Cardiff’s, or something in between?
• Next, think about location and convenience. Choose a venue that your guests can reach easily, and check if it offers essential amenities like parking, catering options, or a sound system for entertainment. If you’d like to personalise the hired space, look for venues that allow you to decorate or that offer customisable packages to fit your vision.
• Lastly, check reviews and ratings from past customers to get a sense of what you can expect from a particular venue. 

That’s it! With these factors in mind, you're sure to find the perfect venue to make your 40th birthday celebration truly magical!

To secure the best venue for your 40th birthday in Cardiff, try to book it at least 3 to 6 months in advance. Popular venues in high-demand areas, such as Cardiff Bay or the city centre, usually get booked quickly, especially during summer weekends or the holiday season. If your event falls on a holiday or during busy months (May to September and December), think about booking even earlier to avoid disappointment.

If you’re looking at quieter times of the year or areas with lower demand, such as Cardiff’s outskirts, you may have more flexibility and could potentially book closer to your event date. However, it’s always a good idea to plan ahead, particularly if you’re seeking a specific style of venue or additional services like catering or entertainment. Booking early also gives you more time to plan your celebration and coordinate with vendors.

Inclusions vary depending on the venue, but most offer the necessary amenities to ensure your celebration runs smoothly. Typically, you can expect the basics, such as tables, chairs, and access to facilities like restrooms and a bar. Many venues also offer catering packages, which can include food and drinks. Some may have event staff on hand to help with setting up and managing the event. For added convenience, many 40th birthday venues provide audio-visual equipment like sound systems or projectors for entertainment or speeches.