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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 :-)” -
![Entire Venue at Bar and Beyond Chelmsford in Chelmsford]()
from £1000
minimum spend / per dayCheck availabilityEntire Venue
800 guestsBar and Beyond ChelmsfordChelmsfordOur flagship venue in Chelmsford, Bar and Beyond is the ultimate event destination. Perfect for corporate events, milestone celebrations, Christmas parties and everything in between. -
![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. -
![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. -
![Main Bar Area at BAR PLUS in Chelmsford]()
from £300
minimum spend / per sessionCheck availabilityMain Bar Area
70 guestsBAR PLUSChelmsfordThe main bar area is the busiest part of the venue and has the strongest “Bar Plus” feel. The layout is simple, with plenty of standing space and room to set up tables if needed. -
![Market at Patch Chelmsford in Chelmsford]()
from £60
hire fee / per hourCheck availabilityMarket
45 guestsPatch ChelmsfordChelmsfordWith a flexible layout and access to a kitchenette, the space can easily be adapted for a variety of events, from supper clubs and creative workshops to networking evenings and drinks receptions. -
![Venue Hire at Boom Battle Bar Chelmsford in Chelmsford]()
from £3500
hire fee / per sessionCheck availabilityVenue Hire
300 guestsBoom Battle Bar ChelmsfordChelmsfordReady, Chelmsford? Boom Battle Bar has crash-landed in Bond Street and it’s bringing next-level nights out with it. Whether you're planning a wild night with friends, a corporate social, or a celebration with a twist, this -
![The BIG Boom Brunch at Boom Battle Bar Chelmsford in Chelmsford]()
from £35
per person / per sessionCheck availabilityThe BIG Boom Brunch
60 guestsBoom Battle Bar ChelmsfordChelmsfordThe best bottomless brunch in Chelmsford, this brunch delivers vibes for days. 90 minutes of bottomless drinks, we’re talking cocktails, fizz and draft beer & cider, a street food feast and live entertainment. -
![Exclusive Use at Downham Hall in Chelmsford]()
from £89
per person / per sessionCheck availabilityExclusive Use
200 guestsDownham HallChelmsfordBoth of these rooms are also perfect for hosting a wedding breakfast and evening reception. Should you need more space, you can celebrate your wedding day at a marquee set in the garden. -
![Event Space at Rettendon Lodge Events in Chelmsford]()
from £800
hire fee / per dayCheck availabilityEvent Space
260 guestsRettendon Lodge EventsChelmsfordFrom your first consultation until your final guests depart on your special day, you will be looked after by your own Event Manager, banqueting and bar team.
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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 :-)...’ -
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... -
Market at Patch Chelmsford
on Springfield Road - 0.4 mi from centre.
Venue said: Patch is your neighbourhood space to work, discover, and meet. Located in Chelmsford’s historic Grays Yard brewery, we provide beautifully designed work and event spaces with best-in-class facilities for an amazing collaboration.
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 September 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: The layout is simple, with plenty of standing space and room to set up tables if needed. It works well for birthday groups, socials or anything that needs a fun.
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Page last updated in September 2026
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