Alright folks, let me walk you through my nightmare trying to figure out the crowd rules for an event at The O2 Dublin. Total rollercoaster ride, I swear.
The Wake-Up Call
So I thought booking O2 Dublin would be smooth sailing – it’s a massive venue, right? Boy, was I wrong. Started scrolling their official pages for capacity rules and immediately hit a brick wall. Every room had different limits plastered in PDF brochures from like 2018. Felt like digging through ancient scrolls just to learn the Main Hall holds 14,500 while the Indigo room squeezes in 1,000 max.
Phone Tag Chaos
Figured I’d just call the venue managers. Big mistake. Got passed around like a hot potato – sales said ask operations, operations said check with fire safety, fire safety transferred me back to sales. Left voicemails for three different people. Absolute circus. Finally connected with this exhausted-sounding coordinator after 48 hours who mumbled something about “dynamic capacities based on stage configurations.” Translation: nobody had straight answers.
The Sneaky Loophole
Got desperate and started ringing other event planners who’d used O2 Dublin. This old-timer in the pub scene tipped me off about standing room variations – turns out you can pack way more people if you remove all seats from Block H behind stage. But you gotta submit stage blueprints to licensing authorities showing emergency exits, and Dublin Fire Brigade does surprise inspections. Cue me running around for days with a measuring tape sketching my goddamn stage layout like a mad architect.
Spreadsheet Hell
Made this monster spreadsheet comparing:
- General admission fire rules vs seated configurations
- Barricade clearance zones (big shock – those take up 25% floor space)
- Hidden venue fees for extra security when crossing 10,000 attendance
Had four versions before realizing my original plan would make the place feel like an empty warehouse. Wasted two weeks chasing phantom numbers.

The Facepalm Solution
Ended up booking a site visit where this silver-haired stage manager took pity on me. Sketching sightlines on a napkin, he goes: “Planning your exit routes first? Amateur move.” Showed me how curved stage wings affect standing capacities and why mixing seated/standing areas requires triple the security. His golden advice? “Stop counting heads and start measuring butt space.” Reduced my crowd size by 18% instantly.
Epic Paperwork Fail
Submitted all documents thinking I’d nailed it… only to get rejection from licensing board because my medical tent placement blocked a secondary fire exit I never noticed. Final approval came with nineteen conditions including “no fog machines in Section B” and “maximum six people on stage during encore.” Felt like negotiating with dragons.
Massive respect to venue planners now – it’s less about ticket sales and more about not getting sued when 14,000 people need to pee simultaneously. Moral of the story? Fire marshals run Dublin events, not promoters.