Celebrate your transition into adult life in one of the liveliest and unique venues in London. Head to the Piano Works for an endless night of dancing and singing your heart out to the songs you request in this jumping House of Song. Held in a Victorian basement, the team behind this impressive project wonderfully combine the venue's nostalgic feel with the electric vibe of an incredible concert. Blow the roof off this place to celebrate your 21st birthday in style. 

21 is a roaring party, whatever the weather, so where to make the most of it in London? If you're looking for a 21st birthday party in London where you can dance the night away, head to Loop in Central as this cracking club promises cheesy pop, VIP booths, a multi-coloured dance floor and more. 

Celebrate your 21st birthday the best way with Tonight Josephine. With venues in Clapham and Waterloo, these are the perfect spots to let loose and have fun with a cool range of events. Think karaoke shindigs, Beyonce-themed bottomless brunches and musical singalongs.

Turning 21 and still need to find your party palace? Celebrate at Neverland's Little Kyoto for some of the best experiences in London whether you choose a bottomless brunch with free-flowing bubbles or a drag bingo event.

It's the big 2 1, and how are ya gonna celebrate? Make it a special one by heading off to this Silent Sounds Boat Party. This bad boy will cruise you past some of the city's most famous landmarks, as well as offer you a buzzing dancefloor and quality tunes.

Sway in Soho offers different spaces with a stylish and contemporary décor; 3 bars, a nightclub and a restaurant all under one roof. The music varies in the different rooms so you can chose the atmosphere you prefer to Sway your hips.

Spot the trendy crowd out for fun at Zoo bar, a chic and modern club in Soho. You can enjoy a night of fun and frivolity and chart and commercial house music until 3 AM in a very lively atmosphere at this central London bar.

This bar is a UFO in the world of Shoreditch clubbing. With a quirky and bold interiors and an eclectic music policy to match, you always spend a night to remember at Gigi's with cracking tunes, good food and delicious drinks aplenty.

It's always a fun time party night at Bar Rumba: great themed nights, dressing up and dancing all night. Bar Rumba is a lively and comfy boutique club with lots to offer for anyone looking for a 21st birthday party with a twist.

Head down the stairs to the basement bar at The Hoxton Seven for a drinking den fit for a king. A great place to let your hair down on your 21st, the line up of cool cocktails and live DJs spinning tunes is a guarantee for a memorable night. If you feel peckish, order one of their delicious home-made pizzas too.

Strong cocktails, power ballad anthems and fancy dress antics make for one heck of a 21^st birthday; trust us. Get yourself along to London's devoted karaoke bar, where liberating, heart-racing performances are the norm. There's thousands of songs to choose between and you could add a cocktail masterclass to your package for that extra wow-factor.

For a more unique 21st birthday get onboard West End on the Thames, which will take your party onto the Thames for a backdrop of some incredible views of London. On the top deck of this spacious river boat you can enjoy all the hard-to-beat views of London at night. Mingle amongst the other young, adventurous partiers of London, or hire out the whole party for a private clubbing cruise through the heart of London while admiring the city as you've never seen it before.

Turn back the hands of time for your 21st birthday party, at The Old School Yard. What better way to celebrate your 21st birthday than by remembering your childhood? Reserve an area to enjoy the great cocktails, happy hours and retro arcade games; or liven things up by booking one of the many private karaoke rooms. For a lively and fun filled 21st birthday party in London.

Grab your share of the VIP treatment at this Moroccan-inspired party palace. Fez Club's professional staff, awesome sound system and late licence make it the perfect destination if you're celebrating in Putney. Enjoy a few unique cocktails or a glass or two of champers then join a lively crowd on the dance floor until 4 AM at the weekends!

Want a rooftop hideaway for your 21^st birthday? Yeah you do. Head to Bar Elba which boasts a proper tropical theme, complete with sunny colours, panoramic views and a cocktail menu that's 20-cocktails strong featuring all-new alcohol laced slushies just in time for summer.

Undoubtedly one of London's most unique afternoon tea experiences can be enjoyed aboard this vintage Routemaster bus! Take in all of central London's sites on a charming drive around the city, with a spread of sandwiches, pastries, cakes and macaroons to nibble away at. Bring your own bubbly for a £5 corkage fee for that extra sparkle.

If you're after birthday ideas, Bar 161 is a great place to host your celebration. Along with a chic interior and intimate atmosphere, the venue supplies the best cocktails, from blood orange margaritas to martinis and negronis.

Looking for a fun place with a little bit of everything? All Star Lanes in Stratford has it sorted. Warm up with a couple of cocktails from the 1950s Americana-inspired bar, before popping over to the bowling arena, where there's no less than 14 lanes. Once you're all done slaying your mates you can patch things up at dinner, where the menu features everything from Dedham Vale burgers to mac 'n' cheese.

Now that you're all grown up, have a sophisticated soiree in the swankiest club in South London at this Clapham club. With three rooms to choose from, get down low in the basement bar, break it down in the main terrace area or class it up in the split level VIP lounge. Regular burlesque performances and even fire-eating will have your heads spinning and eyes bulging, so hit this place up for a birthday to remember.

Celebrate the start of your 21st year with a bang by grabbing your mates and taking them over to Story Croydon. As part of their birthday packages, you can enjoy a VIP table, hostess service and lots of other special additions, alongside the clubs usual banging tunes and cracking drinks.

Ping pong tables, shot wheels and Scandinavian party vibes all pool together to create one fun-loving 21st birthday party destination at Nordic Bar. You might have to immerse yourself in Nordic traditions by wearing a cone on your head and shouting 'Skaol' before downing your drink but you'll be rewarded with some of the best Scandinavian food and drink, a fun crowd and DJs spinning pumping tunes until the early hours of the morning.

Get ready for a roaring 21st birthday party in Central London thanks to the help of Number 1 in London Bridge. Not only can you book private areas for you and your pals, get ready to dance well on into the night thanks to a roster of fun-time DJs.

Fancy throwing an epic 21st bash? Then check out Simmons Holborn. This cool venue is home to two floors, which are perfect for celebrations, including fabulous live DJ sets and a dancefloor. To top it off, there's a five-hour-long happy hour every day, with teapot cocktails galore.

If you've got the search party hunting for something incredibly fun - but a little bit different – this is you all over. It's probably easiest to think of Sounds Familiar as a disco in a pub quiz format, except there's no mundane trivia and the focus is instead on identifying songs and the artists responsible. A wildly fun night where you'll likely end up on the tables, arms around a stranger, belting out the words to one power ballad after another.

There's no time like the big two-one to get a bit silly, and there's no better place to do it than the Bloomsbury Bowling Lanes. With bowling, karaoke, ping pong, pool and cocktails, it's one of the best bars in London for a 21st birthday.

No, seriously. It really is possible to enjoy a 21st birthday party on Leicester Square without burning a hole in your wallet. Ruby Blue is the mythical destination of choice, bringing tasty comfort food, happy hour discounts and feel-good partying to one of the most prestigious parts of town. We'd suggest getting along between 5 and 8 PM (except on Saturdays) where happy hour drinks should get your birthday celebrations off to a flying start.

Are you obsessed with Studio 54? Then this is the ultimate birthday celebration for you. Unleash your inner Cher, Bianca Jagger or Andy Warhol by heading to Disco Brunch, where they're giving you delicious eats, free-flowing booze and epic hits all afternoon. 

If you're after live music and cocktails to celebrate your 21st birthday in London, then Louche is where to head. The Soho spot is brimming with jazz musicians, alongside high-energy house come the weekends.

Looking for fun and affordable ways to celebrate the big 2-1 this summer? Hashtag Parties are bringing together a whole host of cheap nights out in Central London across June and July, so get the gang together and prepare to celebrate properly.

The Shoreditch is an East London club. It is a restaurant during the day, serves cocktails in the evening and hosts regular DJs into the early hours. The interior is fun mix of Tiki-bar and art deco with flamingos and honey comb wallpaper providing a unique bar setting.

If you're not sure where to celebrate your 21st birthday yet, check out DNA VR. As one of the best virtual reality experiences in the capital with venues in Hammersmith, Battersea and Camden, this is a top choice for special occasions.

Trapeze will truly offer you a birthday you won't forget. Set in the heart of Shoreditch, it's the ideal place for your 21st birthday with a cool cocktail bar on the first floor and a pumping basement club, this circus themed venue is an incredibly fun night out. With food on offer as well, there's really everything you need in one night.

After something a little different from your 21st birthday bash? Head to RnBhangra Brunch's top secret location for their desi day party, which is bringing you bottomless cocktails for the first hour, a two-course meal and bhangra hits to boot.

If you're on the hunt for birthday venues, Four Quarters in Elephant and Castle is a brilliant choice. The space is packed with tonnes of games to play from arcade and pinball machines to classics such as Guitar Hero. Plus, there's food and themed cocktails on offer - the Princess Peach is delish.

If you love comedy gigs and clubbing, Bar Rumba has the night for you. Every Saturday night, Bar Rumba holds its Big Night Out Comedy Club. Soak up the happy hour deals before the comedians start the show, then get your dancing shoes on for some late night party action afterwards. Ideal for birthdays or groups of friends looking for something a little different, book online and get your discounted tickets exclusively with DesignMyNight...

Fabric is well situated between Farringdon and Barbican. You can expect to move your body to the rhythm of cutting-edge house, techno, electro, disco, dub-techno and many other music styles mixed by various artists from underground DJ talents to international legends.