Yours for the evening
Private Hire in Bath
Close the door, dim the room, and let the vaults belong to you.
I · The invitation
Hire the Vaults for Your Celebration
For private hire in Bath with genuine theatre, descend the stairs beneath Grove Street and let the vaults become yours for the night. Opium is Bath's best known secret , a candlelit warren of plum, oxblood and curiosities, hidden just off Pulteney Bridge , and it makes an unforgettable private party venue for birthdays, milestone celebrations, corporate gatherings and intimate private dining. No bright lights, no anonymous function room: just flickering candlelight, taxidermy in the shadows, and a bar built for the decadent. Tell us the occasion and we'll wrap the room around it.
II · The Secret Room
A Function Room Like No Other
At the heart of our private hire offering is the Secret Room, an intimate, hidden chamber seating up to 15 guests, with room for more standing. It's the ideal birthday party venue in Bath: closed off from the rest of the bar, entirely yours, and dressed in the same Victorian-decadent style as the vaults beyond.
Your group gets its own private bartender all evening, plus a screening facility and a karaoke machine for when the night demands it. It's function room hire in Bath reimagined, small, secret and unmistakably ours.
Step Inside
III · The Drinks
Bespoke Drinks & Private Dining
Every private party at Opium is built around the drinks. Our bartenders craft bespoke cocktails to suit your group, a signature serve named for the guest of honour, a welcome round poured the moment you arrive, or a flight of curiosities to work through across the evening. Wine, gin and beer flow alongside, all served by candlelight.
Want to make an event of the drinks themselves? Add a private cocktail masterclass and let your guests shake and stir their own creations before the celebration proper begins.
IV · Worth celebrating
Perfect For
Any age
Birthday Parties
From milestone birthdays to a low-key gathering, the vaults make any age feel like an occasion.
On the clock
Corporate & Team Events
Leaving drinks, client entertaining and end-of-quarter celebrations with a private bartender on hand.
For the bride
Hen Dos & Celebrations
An intimate, theatrical backdrop for the bride-to-be, see our dedicated hen do offering.
In season
Christmas Parties
Book the vaults for festive private dining and drinks through the season in Bath.
Planning a hen weekend or a festive function? Explore our hen do and Christmas party packages, or book a table for smaller groups.
The door is open
Descend Into the Vaults
Bath's best known secret is waiting beneath Grove Street. Reserve the Secret Room, gather your guests and let us pour the evening into shape.
Before you descend
Private Hire Questions
There's no flat room-hire fee, instead we build around your group with a minimum spend that varies by day, season and party size. Send your date and numbers and we'll come back with a tailored quote for your celebration.
Our Secret Room seats up to 15 guests, with room for more standing. For larger birthdays and functions we can discuss hiring a wider section of the vaults, tell us your headcount and we'll find the right space.
Yes. Private hire comes with your own dedicated bartender for the evening, and we can design bespoke craft cocktails around your group, plus a full range of wine, gin and beer.
Birthdays, hen dos, corporate get-togethers, leaving drinks, engagements and Christmas parties all work beautifully. If it's worth celebrating, it's worth descending into the vaults for.