Siren has taken the old BrewDog site and Katie O'Brien's Irish Tavern opened next door on 3 October. Opening hours for both, and what each one offers.
Two new bars have opened side by side at the Brewery Quarter in a week. Siren Craft Brew opened in the former BrewDog unit on Monday 28 September. Katie O’Brien’s Irish Tavern opened next door on Saturday 3 October.
The Brewery Quarter’s managing agents confirmed both openings in an announcement on 2 October. (The Brewery Quarter, via Visit Cheltenham, 2 October 2026)
Siren: a Berkshire brewery’s first bar outside Berkshire
Siren is an independent brewery from Berkshire. It says Cheltenham is its first venue outside that county. (Siren Craft Brew, Siren Cheltenham)
What Siren says the bar offers:
- more than 30 lines of beer from its own brewery and guests
- a drinks menu of wines, spirits and cocktails
- food: small plates, burgers and sharers, with a children’s menu
- a Blue Light Card discount
The brewery says the bar is family friendly.
Katie O’Brien’s: live music and sport, open until 2am at weekends
Katie O’Brien’s Irish Tavern is the chain’s 13th venue, according to the Brewery Quarter announcement. It is at Unit 4, The Brewery Quarter, GL50 4FA. It promises live music every day and big-screen sport. (Katie O’Brien’s, Cheltenham)
Some points from the tavern’s own page:
- there is no need to book a table for an ordinary visit
- bookings are taken only for Christmas or corporate groups of 30 or more
- it runs a strict smart casual dress code, at the manager’s discretion
Nikki Kontarines is a director at Martin Commercial Properties, which manages the Brewery Quarter. She said: “To have two new operators open within just six days is fantastic and highlights the continued investment and variety at The Brewery Quarter.”
Opening hours
| Day | Siren | Katie O'Brien's |
|---|---|---|
| Monday and Tuesday | 4pm to 11pm (food 4pm to 9pm) | 3pm to midnight |
| Wednesday and Thursday | Noon to 11pm (food noon to 3pm and 5pm to 10pm) | 3pm to midnight |
| Friday | Noon to midnight (food noon to 10pm) | Noon to 2am |
| Saturday | Noon to midnight (food noon to 10pm) | Noon to 2am |
| Sunday | Noon to 8pm (food noon to 6pm) | Noon to midnight |
What it means for you
The BrewDog unit is no longer empty, and the Brewery Quarter has gained two late-opening venues in one week. If you are heading there after a match or a show, Katie O’Brien’s is the later of the two: it stays open until 2am on Fridays and Saturdays. Siren closes at 8pm on Sundays.
Both venues are a short walk from the town centre car parks. Our parking in Cheltenham page lists every council car park and its charges.
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