Did someone say craic and cake? If it’s your 21st, Belfast is where you should be. Pints in snug pubs, rooftop toasts above city lights, and dance floors that don’t quit till dawn. The city’s 21st birthday party venues serve up good times, dodgy dance moves, and stories you’ll be retelling for years. Whether it’s cocktails, karaoke, or chaos you’re after, Belfast’s got the energy and the hangover cures to match. Go on, make your 21st one for the legends list.
In Belfast, prices of 21st birthday party venues average £26 per person. 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 Belfast, based on Tagvenue data from November 2025:
| From £22 | to £35 | per person |
| From £100 | to £150 | hire fee per hour |
| From £1150 | minimum spend per event |
You'll find 21st 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 Belfast, together with the standard prices in each size range, based on Tagvenue data (November 2025):
| Small 21st birthday party venues | up to 45 guests | prices average £100 hire fee per hour |
| Medium 21st birthday party venues | between 55 and 100 guests | prices average £120 hire fee per hour |
| Large 21st birthday party venues | over 120 guests | prices average £200 hire fee per hour |
These are the venues within 0.3 mi from central Belfast, available to book on Tagvenue: