With pretty interiors and hankering for deep flavours, Matsya in Mayfair is offering some of the most surprising India cuisine and unique cocktails in London. Enjoy an intimate fine dining experience for your birthday, and be transported to different parts of the region with their unique dishes. 

With their swilling of Champagne, traditional interiors and bustling selection of gastro inspired plates, it's no wonder that Champagne Charlie's has become such a bespoke birthday joint. With their exposed brickwork and barrel theme, this special plot is primed for any birthday party. 

Take to this cosy pub for your 40th birthday celebrations and hire out the whole space for your family and friends. The Vineyard is all about laid-back drinking and delicious gastro grub to keep the punters happy, with its funky interior design and covered beer gardenthat's perfect for outdoor escapades. 

Have a sophisticated 40th birthday soiree at this swanky bar in King Cross. As well as serving elevate gastro grub and an ample choice of classy cocktails, fine wines or boozy beers, this place's picturesque rooftop terrace is an extra-special location for celebrating with friends and family. 

Seeking out that perfect prohibition party? Look no further than the Candlelight Club, an elusive evening out in a secret location lit exclusively by candles. All we can tell you is that there will be bespoke cocktails, live jazz bands and a bloody handsome crowd in all their finery...

Unique, delicious and charming, one of London's finest afternoon tea experiences is enjoyed aboard this vintage Routemaster bus. Take in Buckingham Palace, Big Ben and the Royal Albert Hall with a selection of sandwiches, pastries, cakes and macaroons, all washed down with BYOB fizz. 

Patch St. Paul's is an affordable multi-purpose venue in the City, toting a good reputation for providing great evenings for large groups. Set over two floors with a restaurant, cocktail bar and modern club, this place offers the full birthday package with dinner, drinks and dancing.

Enjoy a 40^th birthday celebration at the May Fair Kitchen and you can enjoy a delicious array of Mexican and Peruvian sharing plates, paired with amazing cocktails and fine wines together. Or, if you fancy a more secluded affair, you can opt for their lavish Private Dining Room instead.

Delve into this charming little rabbit hole of artistic goodies at Wonderland Ceramics, who present the ultimate in feel good, fun activities - painting pottery and supping on cocktails or BYOB. Jazz up your kitchen wares with some playful mug, bowl, tea pot or even picture frame decorating. 

The Chelsea Ram sets the tone just right for your 40th birthday celebrations in London. Pervaded with humour in the form of eccentric features and loyal to a shabby elegance that sets its guests at ease immediately, the pub's impressive interiors come paired with a hearty menu of pubs classics.

What better way to celebrate the big 4-0 than with dinner and a show? Head down to The London Cabaret Club in Holborn to indulge in a quintessentially British dining experience with flowing drinks and an innovative live cabaret show from some of the West End's biggest stars. 

Effortlessly cool, East London bar The Strongroom is a perfect London birthday location. With huge beer selection, great food and plenty of spaces to hire or just hang out in, including an impressive beer garden when the weather's good, there's no better place to hit the big 4-0.

Styled around the illicit, underground activity of a roaring twenties speakeasy, Proud Cabaret delivers a night of glamour and intrigue below the streets of the city. Experience a dazzling night of food, drink and dazzling entertainment in one of the city's very best venues for burlesque performance.

This sophisticated little haunt is a members only club, but squeeze your way in and hire out the private dining area for a spot of classy munching from an impressive menu. Add the tastiest of tipples, from the classics to the innovative, and you have a glam birthday topped off with quality.

A fresh and easy-going haunt close to St Paul's, Core is ideally suited to intimate celebrations with your family and extravagant parties alike. There's a whole range of delicious cocktails and beers to sample, a good selection if you'd like to sit down for dinner in one of their private spaces.

If you fancy a big night celebrating your birthday, Bar Rumba is a cracking West End club that boasts live DJs, banging happy hours and delicious drinks. But if you're keen on something a little more low-key, there are also salsa classes and open mic nights.

For an elegant 40th birthday venue in Central London that's sure to leave you feeling like royalty, head to Blind Spot in Soho and lose yourself a little. The team here have pushed boundaries, creating a list of cocktails that perfectly complements the venue's sophisticated, vibrant atmosphere.

The big 4 0 is coming up, and you're not sure how to celebrate? We know just the thing. Silent Sounds is hosting a load of exciting boat parties that take you along the River Thames. Soak up the sights (and the drinks), all while dancing to disco tracks via your headphones.

From light and scrumptious finger sandwiches through to chunky fruit scones, Scoff and Banter on Oxford Street are the perfect place for a fancy 40th birthday celebration in London. Tucked away just off London's busiest shopping district, you'll find a cosy little retreat after splurging.

If you're looking for a sophisticated birthday celebration for your 40th then Devonshire Terrace is just what you need. This classy restaurant bar has a stunning interior, an outdoor atrium and a terrace perfect for enjoying drinks and seasonal plates any time of the year.

How better to celebrate your 40th birthday than a night dancing to all of your favourite 70s and 80s tracks? Rouges in South London offers the city's late-night revellers a frivolous evening of laughter, outrageous dance moves and stunning performances.

Celebrate your forties in style at this fabulous Provence inspired London cocktail bar. With an impressive list of Pastis and Absinthe inspired cocktails on offer, as well as the UK's only indoor petanque courts, this is a good choice of venue to host your 40th birthday party in London. 

The East Hill pub is a quaint, characterful venue that's ideal for an intimate 40th birthday celebration. Armed by the freshest ingredients and the finest cuts of meat, the chefs at this homely haunt have curated a menu of hearty British dishes, with a line up of locally brewed craft beers to wash it all down.

This circus haunt with its acrobatic instruments dangling from the ceiling, its multi-coloured booth seats and its checkered floor is a vibrant and unique venue in Hoxton to chase all other quirky venues right off the map. Settle in for a raucous night in a bar whose very interior is an entertainment in itself.

This sophisticated hang out is the perfect spot for a quality meal with rustic tables and stylish, modern interior... there's even balcony seating for sunny summer nights. Stick around for a screening in the cushy cinema and sink into the sofa seating with free bags of popcorn.

Looking for a special place in London to celebrate your 40th birthday? The Soda Room is a cocktail haunt hidden under the Botanist Broadgate promising cool interiors, blinding cocktails and a cool atmosphere, all throughout the week. Expect great drinks, great music and an unpretentious crowd. 

Voted best party bar in the 2014/15 DesignMyNight awards, this place is credited as the best venue around for your big birthday bash. Have a sophisticated shindig in stylish surrounds with superb cocktails, expertly blended by the mixology pros, and rock on through the night.

A hidden gem in the heart of London's finest train station, Searcys in St Pancras promise the ultimate in birthday indulgence. Perfect for any 40th birthday bash in the city, this elegant eatery is renowned for oysters, press for Champagne buttons and handpicked bottles aplenty. 

Popular for private functions, this glam picture of elegance and sophistication is the perfect spot for some drunken lounging or a bit of something tasty and topnotch. Enjoy a cocktail masterclass or a buffet or simply kick back and relax and let the night fall where it may.

A modern city pub and bar, The Tokenhouse is a great city escape for your 40th. With a great Cellar Bar that's perfect for private hire events, this speakeasy party venue matches its cool interiors with a wide range of beers, ales and craft lagers and a menu of fresh seasonal plates.

Celebrate your big day with your closest friends and family at a cozy restaurant like Coin Laundry. This venue has the comfort and appeal of a stylish 70s home with a perfectly articulated menu, ensuring that you and your guests have the best 40th birthday experience possible. 

A cocktail lovers paradise - The Cocktail Club offers up plenty of themed venues that are perfect for a 40th birthday event. With top quality cocktails on offer as well as innovative food, this place hits the nail on the head... plus the decor will captivate the eyes and add to the cool feel.

If you're feeling like a bit of demure drinking and charm for your birthday celebrations, get to Little Nan's. Her signature Afternoon High Tea & Cocktails experience will have you comping away on tasty tiny sarnies, baked goods and light bites while washing it all down with teapots filled with cocktails. 

This unusual venue is an event space for private hire only, so book your space now and plunge the depths of this secret den. With an arched textured ceiling, suave vintage furniture and an Alice in Wonderland feel chequered floor, this place is a magical escape for your birthday. 

The team at All Bar One on Villiers Street are no strangers to hosting fun nights out in London. Armed with a fully stocked bar and signature cocktails, the venue's many seating areas are ideal for anyone looking for a spot to celebrate their 40th birthday with their nearest and dearest.

Apples & Pears cocktail bar is the perfect stage for a memorable 40th birthday bash off Brick Lane. There's wood fired pizzas if your party is peckish, a whole host of cocktails, beers and wines to cater for all tastes and an atmosphere packed with east London energy. 

The London Marriot's former luggage storage facility has been remade into this decadent 1920's style secret bar. Find the unassuming door and speak your name through a sliding hatch, and then you'll be able to enjoy premium cocktails with a side of jazz music to make for a cracking 40th birthday.

In need of a spot for those all-important 40th birthday celebrations? The Star By Liverpool Street is a top choice. Whether you fancy hiring out the fabulous private spaces, from The Glam Palace to The Backstage Room, or trying out some epic cocktails, this venue is sure to hit the spot.

The Piano Works is an ideal spot for 40th birthdays with extra music, as the venue only plays requests from the audience, so you're guaranteed to have a bespoke celebration. Sip your way through their vast cocktail list or simply dine a range of delectable dishes at this lively House of Song.

Grab a clutch of your pals together and celebrate aboard a stunning party boat on the Thames. You'll drift down the river, enjoying the sights of central London, while respected DJs spin a mix of RnB, hip-hop, funky house and old skool classics to keep the party flowing.

This luxurious lounge with its soft hues and even softer seats is an indulgent hug of velvet sofas, cushions and alcoholic taste bud snugglers. Settle back in elegant surrounds with a handcrafted cocktail to hand and revel in the gentle yet sophisticated buzz of this sleek birthday bar.

Heading to the theatre? Fill up with enticing plates from Tredwells in Covent Garden. With its elegant surroundings and curated menu that showcases British seasonal produce with a global twist, you can cater for any audience joining your 40th birthday celebrations.