40th Birthday Venues London

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By Scarlett Welch Editor, DesignMyNight Scarlett has covered the UK's best restaurants, bars and events for DesignMyNight since 2023. She holds an MA in Media & Journalism, with bylines in The Crack magazine and South London News, among others. Last updated on 14th July 2026

Looking for a 40th birthday party venue in London? These days 40 is the new 30, so don't tuck yourself away when that big celebration comes around. Get out there and see what London has to offer, whether you want a sophisticated evening with a few friends or a riotous evening to make you feel 20 something again... our city's bars and clubs are sure to have something to offer. Scroll through our top picks of the best 40th birthday venues in London and make a night of it. 




The Venue N10

Looking for a cool spot to celebrate your birthday in? Then head to The Venue N10, located in Muswell Hill. Whether you want to hire out the entire space for you and your friends or just fancy a few cocktails in a buzzing bar, this place is a great shout.

Their talented mixologists are whipping up a cracking range of cocktails, to be enjoyed while grooving to live DJs. As for the interiors? This speakeasy-style destination features comfy leather booths, glowing LED lights and mirrors lining the walls.

Silent Sounds Boat Party

@ The Silent Disco Boat on Saturday 15th August and Saturday 19th September 2026

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 house, hip hop and disco tracks via your headphones.

Tickets cost as little as £27 per person, promising a choice of three different DJs and a fully stocked bar on each deck. And for afterwards, they're offering a 40% discount on entry to the iconic Ballie Ballerson.

St. Christopher's Inn

Happy Hour!

A lively pub in the heart of London Bridge, St Christopher's Inn is serving up some of the best local ales and classic cocktails around. The charming space is filled with rustic wooden furnishings and comfy leather booths, decorated with fairy lights. And if you want something a little more exclusive for your celebration, their private rooms fit between 35 and 100 people at a time.

They've got a happy hour running from 4 to 8pm on weekdays, promising £5 drinks and two-for-one pizzas. You can also tuck into the likes of mushroom risotto, Cumberland sausage and mash or hearty burgers, so there's something for everyone here. Topping it all off? They host live music every single day.

Bbar

bbar Happy Hour and 2 other offers

Looking for a cool birthday destination in the Westminster area? Bbar is a stylish cocktail bar that serves a huge selection of drinks, both inside and out on the sunny terrace.

They offer multiple private dining options, with space for anywhere between 20 and 120 guests and minimum spends from £800. Hungry? Get stuck into small plates and mains like burgers or fish and chips, or even a cream tea.

The Milestone Hotel and Residences

Afternoon Tea Award Winner Offer and 2 other offers

Begin your life at 40 in the ultra-elegant surroundings of The Milestone Hotel & Residences. With amazing views across the gardens of Kensington Palace, it brings royal sophistication to your special day.

Celebrate in style at Cheneston's restaurant for a hearty British feast with silver trolley service and dishes finished at the table. Prefer a liquid lunch or dinner? Stables Bar has got you covered with fine fizz, top tier spirits and hand-crafted signature cocktails.

The Department Store Brixton

The Department Store in Brixton is a stunning, sophisticated space for a birthday party, with several private hire spaces available if you fancy something a little more exclusive. Not only can you book the gorgeous dome dining room, but there's also a beautiful rooftop terrace which looks out over the city here. As for the menu? You can expect duck terrine, harissa roasted squash, creamy burrata and so much more, with an array of creative cocktails to wash it all down.

West 16th

For a stylish 40th birthday in London, West 16th provides a chic yet relaxed backdrop. From brunches to evening dinners, the light-filled space offers a versatile setting for friends and family to celebrate.

Seasonal menus and modern dishes cater to every palate, while the neighbourhood location makes it a convenient choice for a sophisticated milestone gathering.

All Bar One Various Sites

Whether you're looking to throw a huge 40th birthday party across an entire venue or fancy something more low-key, All Bar One's fabulous venues across London have exactly what you need. Think bottomless events, cocktail trees and wallet-friendly offers.

Terra Moderna

Looking for a unique spot to celebrate? Terra Moderna brings together the bold flavours of Australia, New Zealand, and Italy in one gorgeous Belsize Park location on England's Lane. With room for 24 seated or 40 standing guests, it's perfect for intimate gatherings - and the food is just as impressive.

Led by Michelin-trained chef Cristian Gaimarri, the restaurant offers two event menus at £65 or £80 per person. You'll enjoy three or four courses (plus sides) featuring dishes like tuna tataki, slow-cooked Guinea fowl, Provolone soufflé, risotto, and their playful twist on tiramisu: the 'TerraMisu'.

The Cocktail Club - Various Sites

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.