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Top 21st Birthday Venues in Chelmsford
Chelmsford knows how to make everything about turning 21 a big one. Toast to this milestone at a stylish bar on Moulsham Street or go full glam with a rooftop party near Bond Street. We’ve got 21st birthday party venues for lowkey birthday lunches, classy restaurants for an upscale dinner party, ballrooms for that big bash, gardens for a summer celebration, yachts for those Instagram moments, and anything in between.Think sleek lounges, pub function rooms, late-night clubs, and everything in between. So round up your mates, grab the playlist, and get ready to party.
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![Roof Terrace at Be At One Chelmsford in Chelmsford]()
from £250
minimum spend / per eveningCheck availabilityRoof Terrace
80 guestsBe At One ChelmsfordChelmsford
#Supervenue
PPenny B.
“Brilliant Venue !! We held a 50th Party here recently and had a great time. Highly recommend.” -
![Screen 4 at Everyman Chelmsford in Chelmsford]()
from £620
minimum spend / per sessionCheck availabilityScreen 4
56 guestsEveryman ChelmsfordChelmsfordAAnonymous
“Lovely space and Alex the Event manager was really helpful :-)” -
![Full Venue Hire at Be At One Chelmsford in Chelmsford]()
from £500
minimum spend / per sessionCheck availabilityFull Venue Hire
280 guestsBe At One ChelmsfordChelmsford
#Supervenue
JJoshua B.
“Great venue, fantastic sound system for our music. Bar staff were great, attentive and very polite.” -
![First Floor at Slug and Lettuce Chelmsford in Chelmsford]()
from £200
minimum spend / per sessionCheck availabilityFirst Floor
125 guestsSlug and Lettuce ChelmsfordChelmsfordSlug and Lettuce Chelmsford is a friendly town centre bar overlooking the river, right in the heart of Essex. The Slug & Lettuce Chelmsford offers fantastic quality and service, as well as competitive prices all day everyday.
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![Entire Venue at Mowgli Street Food Chelmsford in Chelmsford]()
from £35
per person / per sessionCheck availabilityEntire Venue
90 guestsMowgli Street Food ChelmsfordChelmsfordWhether you're gathering friends, family, or colleagues, Mowgli Chelmsford is available for exclusive hire and can welcome up to 90 guests. It’s a great setting for celebrations, team evenings, or simply bringing people together.
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![Venue Hire at Boom Battle Bar Chelmsford in Chelmsford]()
from £3500
hire fee / per sessionCheck availabilityVenue Hire
300 guestsBoom Battle Bar ChelmsfordChelmsfordThe venue is a neon-accented social bar focused on energetic, music-led nightlife and casual bar service. Design: The interior pairs dark walls and neon signage with colourful high-top stools and bar seating, arranged in
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![Entire Venue at Bar and Beyond Chelmsford in Chelmsford]()
from £1000
minimum spend / per dayCheck availabilityEntire Venue
800 guestsBar and Beyond ChelmsfordChelmsfordThe venue is a late-night bar built around DJ-led music and an active dance area, providing a music-first environment for evening bookings. Design: The interior arranges tufted leather banquettes and low tables around a raised
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![Market at Patch Chelmsford in Chelmsford]()
from £60
hire fee / per hourCheck availabilityMarket
45 guestsPatch ChelmsfordChelmsfordThe Market is a café area in Patch Chelmsford defined by a glass-fronted, naturally lit layout that converts easily between casual seating and cleared flexible use.
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![Main Bar Area at BAR PLUS in Chelmsford]()
from £300
minimum spend / per sessionCheck availabilityMain Bar Area
70 guestsBAR PLUSChelmsfordFeatures: The Main Bar Area has a staffed bar and a cleared central area that can be used for standing or dancing. The space provides a PA system and speakers and allows own music or an external DJ.
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![Cocktail Masterclass at Boom Battle Bar Chelmsford in Chelmsford]()
from £38
per person / per sessionCheck availabilityCocktail Masterclass
50 guestsBoom Battle Bar ChelmsfordChelmsfordCocktail Masterclass is a Bar in Boom Battle Bar Chelmsford centred on an interactive cocktail masterclass setup where guests can watch and take part in drink preparation demonstrations.
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![Essex County Cricket Club at Galvin Green Man in Chelmsford]()
from £35
per person / per dayCheck availabilityEssex County Cricket Club
18 guestsGalvin Green ManChelmsfordThe Essex County Cricket Club dining room is a private dining room in the Galvin Green Man centred on a single long wooden table that organises the space for private, seated meals.
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![Stag Party (Shared Space) at Boom Battle Bar Chelmsford in Chelmsford]()
from £25
per person / per sessionCheck availabilityStag Party (Shared Space)
60 guestsBoom Battle Bar ChelmsfordChelmsfordBoom Battle Bar Chelmsford is a games-led bar combining axe throwing, augmented-reality darts and social games with an American-style street-food and drinks offer.
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FAQs about Top 21st Birthday Venues in Chelmsford
Booking costs of 21st birthday party venues average £620 minimum spend per event. 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 Chelmsford, based on Tagvenue data:
| From £450 | to £800 | minimum spend per event |
| From £25 | to £35 | per person |
These are the venues within 0.4 mi from central Chelmsford, available to book on Tagvenue:
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Screen 4 at Everyman Chelmsford
on Bond Street Everyman Cinema - 0.4 mi from centre.
Our user said: ‘Lovely space and Alex the Event manager was really helpful :-)...’ -
Venue Hire at Boom Battle Bar Chelmsford
on 106-108 Bond Street - 0.4 mi from centre.
Venue said: Boom Battle Bar Chelmsford is a games-led bar combining axe throwing, augmented-reality darts and social games with an American-style street-food and drinks offer. -
Entire Venue at Mowgli Street Food Chelmsford
on 121 Bond Street - 0.4 mi from centre.
Venue said: In the centre of Chelmsford, Mowgli offers a space where Indian street food takes the spotlight. Designed to feel like a home away from home, the restaurant features Mowgli’s swing seats, lanterns, and a calm atmosphere that...
Cheap 21st birthday party venues in Chelmsford start from £250 minimum spend per event or £10 per person. Check out these budget-friendly spaces you can book through Tagvenue, as of October 2026:
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Roof Terrace at Be At One Chelmsford, from £250 minimum spend per event (up to 80 guests standing)
Our user said: ‘Brilliant Venue !! We held a 50th Party here recently and had a great time.’ -
Full Venue at Spirits Bar and Games, from £14 per person (up to 200 guests standing)
Venue said: The space is full of colour, with different artwork and styles across the venue. There’s a mix of activities to get stuck into - axe throwing, interactive darts, foot-pool, karaoke, ice-free curling, shuffleboards, and beer... -
Main Bar Area at BAR PLUS, from £300 minimum spend per event (up to 70 guests standing)
Venue said: What sets it apart: The Main Bar Area enforces an explicitly inclusive policy that maintains a safe, non-aggressive environment for all guests. What guests say: The space is welcoming and community-focused with friendly,
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Page last updated in October 2026
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