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Top 21st Birthday Party Venues in Bath
Finally 21, and Bath’s got the charm to match the moment. The best 21st birthday party venues Bath has to offer come in all shapes: rooftop bars with killer views, private lounges tucked inside Georgian buildings, and cosy function rooms perfect for raising a glass or three. Want to keep it classy with a sit-down dinner? Prefer something casual with a playlist and plenty of dancing? Whether it’s intimate or all-out, there’s a space here for your kind of night. Have a scroll and find the place that makes turning 21 feel like a proper event.
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![Entire Venue at All Bar One Bath in Bath]()
from £1000
minimum spend / per sessionCheck availabilityEntire Venue
175 guestsAll Bar One BathBathAll Bar One Bath is perfect for hosting a variety of events, from birthday parties to bachelor celebrations. The versatile space can accommodate both small intimate dinners and larger festive gatherings. -
![Gin Bar at Slug and Lettuce Bath in Bath]()
from £10
per person / per sessionCheck availabilityGin Bar
60 guestsSlug and Lettuce BathBath
#Supervenue
WWendy
“Staff very friendly and efficent” -
![Party Room at Mantra in Bath]()
from £25
per person / per sessionCheck availabilityParty Room
40 guestsMantraBathMantra’s Party Room is a bright and inviting space, perfect for hosting celebrations of all kinds. -
![The Sepoy Club at The Sepoy Club in Bath]()
from £30
per person / per sessionCheck availabilityThe Sepoy Club
250 guestsThe Sepoy ClubBathWelcome to The Sepoy Club, where exceptional food and warm hospitality meet in the heart of Bath. Our spacious venue, accommodating up to 250 guests, offers a variety of inviting spaces tailored to every occasion. -
![The Roman Room at Square Grill Brasserie Restaurant & Piano Bar in Bath]()
from £35
per person / per sessionCheck availabilityThe Roman Room
40 guestsSquare Grill Brasserie Restaurant & Piano BarBathConverted from the old Roman Baths Kitchens, and you’ll be welcomed into the private bar area where you can meet and greet. As you walk into the room you will be seduced by its rustic charm, with aged oak floors, chandelier, -
![Main Bar at BrewDog Bath in Bath]()
from £2000
minimum spend / per sessionCheck availabilityMain Bar
200 guestsBrewDog BathBathBrewDog Bath is a large, lively venue just a short walk from Bath Spa Station, with space for up to 200 guests. It’s ideal for private parties, corporate socials, networking events, or brand activations. -
![Main Dining at The Coconut Tree Bath in Bath]()
from £24
per person / per sessionCheck availabilityMain Dining
100 guestsThe Coconut Tree BathBathIf you’ve got something to celebrate, why not take over the whole place? The Coconut Tree Bath can fit around 100 guests, making it a top spot for birthdays, work dos, or a big get-together with your crew. -
![The Ariston Room at Sanremo The Italian Restaurant in Bath]()
from £50
per person / per sessionCheck availabilityThe Ariston Room
80 guestsSanremo The Italian RestaurantBathThe Ariston Room is a private dining room for bigger events. You can bring up to 80 guests for receptions, or host dinners with up to 60 people. Celebrate your birthday, anniversary, or the coming of a baby! -
![Main Dining Area at Sanremo The Italian Restaurant in Bath]()
from £7000
minimum spend / per sessionCheck availabilityMain Dining Area
110 guestsSanremo The Italian RestaurantBathAn open kitchen and bar add energy and visibility to the room. Ideal for larger celebrations, corporate events, or private hire. -
![The Pulteney Room at No.15 by GuestHouse, Bath in Bath]()
from £500
hire fee / per dayCheck availabilityThe Pulteney Room
16 guestsNo.15 by GuestHouse, BathBath
#Supervenue
The Pulteney Room at No.15 lends itself perfectly to business meetings, brainstorming sessions or even private functions. With its vast sash windows, high ceilings, bright and airy feel, air conditioning and views of Great -
![The Gallery Room at St James Wine Vaults in Bath]()
from £100
hire fee / per sessionCheck availabilityThe Gallery Room
50 guestsSt James Wine VaultsBathAscend to tranquillity and inspiration in The Gallery Room, our serene, open-plan space on the second floor of St James Wine Vaults, located at 10 St James's St, Bath BA1 2TW. -
![Sepoy Room at The Sepoy Club in Bath]()
from £30
per person / per sessionCheck availabilitySepoy Room
60 guestsThe Sepoy ClubBathWhether you're hosting a private dinner party, a corporate luncheon, or a small-scale celebration, this versatile space offers a tranquil retreat away from the bustle of the main dining area.
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Capacity
Budget
Area type
Venue type
Catering and drinks
Accessibility features
Book One of Bath's Cheap 21st Birthday Party Venues
from £200
hire fee / per hour
hire fee / per hour
Event Space
45
100
Rengen House
Bath
This event space at Rengen House provides a distinctive ambiance ideal for intimate gatherings or small celebrations. With a capacity to accommodate up to 100 guests, the venue offers a blend of modern elegance and vintage
from £25
per person / per session
per person / per session
Whole Venue
69
110
Mantra
Bath
Additionally, the outdoor terrace provides a breathtaking view of Bath, adding a scenic touch to any event. This versatile venue is ideal for both casual dining and special celebrations.
from £30
per person / per session
per person / per session
Downstairs Area
40
64
Root Spice
Bath
The downstairs Area at Root Spice can host up to 40 guests. The dining layout is flexible and can be set to match your event's needs. It is a great space for dinner parties and corporate receptions.
from £30
per person / per session
per person / per session
Whole Venue
30
48
Maaya Indian & Asian Restaurant Bath
Bath
Ideal for both casual dining and special occasions, the venue provides a relaxing and versatile environment.
from £100
minimum spend / per afternoon
minimum spend / per afternoon
Members Enclosure
15
35
Ludo Bath
Bath
Luxurious banquette seating and elegant tables make this space ideal for accommodating 25-35 guests in a blend of seating and standing arrangements, all while providing the best view in the house.
from £250
minimum spend / per session
minimum spend / per session
Screen 5
12
Everyman Bath
Bath
Each venue is individually available for private hire - perfect for everything from corporate and client events to celebrations. Featuring our signature comfortable sofas, plenty of leg room and bespoke design features, each
Explore Trendy Restaurants for Your Upcoming 21st Birthday Party
from £35
per person / per session
per person / per session
The Abbey Room
50
70
Square Grill Brasserie Restaurant & Piano Bar
Bath
The Abbey Room sits above the main bar and offers a more private space with the same great food and service as the main restaurant. It has floral details, wooden floors, and artwork on the walls, creating a warm and elegant
from £35
per person / per session
per person / per session
Whole Venue
35
40
Baba's Mezze Bath
Bath
Baba’s Mezze Bath is a cozy Persian restaurant located at 19 Barton Street in Bristol. The space is warm and inviting with rich red and earthy tones, wooden tables, and soft lighting.
from £30
per person / per session
per person / per session
Entire Venue
56
60
Indian Temptation
Bath
Located in the heart of Bath, this Indian restaurant combines traditional flavors with a modern dining atmosphere. The venue’s thoughtfully designed interior provides a warm and inviting ambiance, complemented by attentive
from £38
per person / per session
per person / per session
Balcony restaurant hire
80
100
The Botanist, Bath
Bath
A romantic, stunning restaurant space in the heart of Milsom Place, The Botanist makes its home in a stunning octagon-shaped building where all things flora, botany and vintage are celebrated.
from £30
per person / per session
per person / per session
Entire Restaurant
60
96
Root Spice
Bath
The entire restaurant has a capacity of 60 guests. The seating options vary between dining style and couches. It is a great choice for larger parties and receptions.
from £2000
minimum spend / per session
minimum spend / per session
Bibesia Floor
44
70
Edesia
Bath
The Bibesia floor is a modern dining room within our restaurant. The area includes natural light, air-conditioning, comfortable seating, and deep red tones contrasting with the wooden details.
FAQs about Top 21st Birthday Party Venues in Bath
In Bath, prices of 21st birthday party venues average £35 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 Bath, based on Tagvenue data from October 2025:
| From £30 | to £38 | per person |
| From £525 | to £2500 | minimum spend per event |
| From £150 | hire fee 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 Bath, together with the standard prices in each size range, based on Tagvenue data (October 2025):
| Small 21st birthday party venues | up to 40 guests | prices average £250 minimum spend per event |
| Medium 21st birthday party venues | between 60 and 80 guests | prices average £2000 minimum spend per event |
| Large 21st birthday party venues | over 110 guests | prices average £3000 minimum spend per event |
