At 10 Union Street we are proud of our unique wedding spaces and the flexibility they offer our wedding couples when planning your big day, whether it be a large lavish party or a smaller, intimate affair.
10 Union Street is a newly refurbished venue located close to the iconic City of London and its various landmarks. The venue comprises of three floors connected by a stunning spiral staircase, creating an elegant backdrop for your special day. At the heart of the venue, you will find a light filled atrium perfect for that all important arrival guest experience and those magical photographic moments.

With three modern and flexible spaces to choose from, all licensed for a civil ceremony at 10 Union Street, you really are spoilt for choice. Whether you use all three spaces or choose just one, they are all ideal for the civil ceremony, dinner and party:
Atrium – 50 people for a civil ceremony 200 people standing reception.
The Second Floor– 50 people for a civil ceremony
Main Hall – 290 people for a civil ceremony 300 standing reception. 240 dinner

Our dedicated events team will be on hand throughout the entire process from initial enquires, to booking suppliers, all the way up to the big day to ensure your experience is nothing short of perfection. Our recommended wedding suppliers have worked at many weddings within the venue and come highly recommended by past couples as well as by our team. Please speak to your wedding coordinator who can put you in touch with some of our wonderful suppliers including: Entertainment, DJ and Dancefloor, Florist, Stationary, Decor, Photographers, Toastmasters and much more.

One of the most enjoyable experiences during the entire wedding planning process is the menu and wine tasting at the venue. Invite up to two people to join you to help make those all-important menu choices. Led by head chef Jason Bunting, the culinary team bring innovative twists to traditional British cuisine, finding seasonal inspiration from the local market right on their doorstep. They are more than happy to craft a bespoke menu that reflects the overall wedding theme and your favourite dishes.

If you would like to chat with a member of our wedding team then please do contact us at venuehire@10unionstreet.com or on 02077726381, they would be delighted to start helping you plan your big day!

Apr 22
A perfect “yes” moment in the Dartmouth House courtyard 💍
Romantic, intimate and unforgettable; the ideal setting for life’s most special question.
#DartmouthHouse #LondonProposal #ProposalMoment #LondonWeddingVenue #JustEngaged #LondonWeddings
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The Cross Over ✨
Hot cross bun, sherry caramel, whipped Baron Bigod, black truffle.
Sweet. Savoury. Unexpected.
📅 30 April | 6:30pm
#SixClerks #SupperClub #LondonDining #Truffle #SpringMenu #FoodInspo
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WE DID IT 🏆✨
Gold winners for Caterer of the Year 2026!
What an incredible moment for the Graysons team. This award means everything to us and reflects the passion, creativity, and hard work that goes into every single event we deliver.
To our amazing team, partners and clients, thank you for trusting us and being part of the journey. We couldn’t have done it without you.
Here’s to raising the bar even higher 🥂
#Graysons #AwardWinning #CateringExcellence #EventCatering #Hospitality TeamWork
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Six Clerks Supper Club presents Promise of Spring 💐
📅 30 April | 6:30pm
✨ A seasonal dining experience
✨ Thoughtfully curated dishes
✨ An evening to welcome the new season
🔗 Link in bio for more info
#SixClerks #SupperClub #PromiseOfSpring #LondonDining #SeasonalFood #FoodExperience #LondonEvents
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Apr 15
H & A’s beautiful Dartmouth House wedding 🤍
Timeless, romantic and full of unforgettable moments.
#DartmouthHouse #RealWedding #LondonWeddingVenue #WeddingInspo #JustMarried #LondonWeddings
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The Humble Carrot 🥕
A playful dessert from the Six Clerks Supper Club.
’24 carrot’ cake, whipped cream cheese, pickled walnuts, orange marmalade, and dill.
#SixClerks #SupperClub #LondonDining #CarrotCake #FoodInLondon
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We’ve got some exciting news… 🎉
Graysons has been Shortlisted in TWO categories at the Cool Event Awards 2026!
• Catering
• Venue Portfolio
We’re incredibly proud of our team and grateful to everyone who’s been part of the journey so far. Fingers crossed for the ceremony on 17th April 🤞
#CoolEventAwards #EventIndustry #Grasyons #TeamAchievement #EventProfs CateringExcellence VenuePortfolio AwardsSeason
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Will you be joining us? 👀
Delve into “Mary Had a Little Lamb” at the Six Clerks Supper Club, a playful course inspired by seasonal flavours.
#SixClerks #SupperClub #LondonDining #FoodInLondon #SeasonalMenu
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Apr 8
Join us at Dartmouth House for our Wedding Showcase on 18 April | 11am–4pm 💍
✨ Book a tour with our expert team
✨ Meet a selection of hand-picked wedding suppliers
✨ Discover the perfect setting for your big day
🔗 Find out more via the link in our bio.
#DartmouthHouse #WeddingShowcase #LondonWeddingVenue #WeddingInspo #LondonWeddings #WeddingPlanning
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Which would you choose? 👀
🍳 Dippy Eggs — nostalgic and reimagined
🐇 Down the Rabbit Hole — playful and unexpected
Two courses from the Six Clerks Supper Club.
#SixClerks #SupperClub #LondonDining #FoodInLondon #ChefCreativity
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You won’t have to wait long for the next Six Clerks Supper Club 🌿
Join us on Thursday 30th April for “Promise of Spring”
A menu inspired by refined spring flavours and the best of the season.
#SixClerks #SupperClub #LondonDining #SpringMenu #FoodEvents
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Apr 1
Step inside Dartmouth House for our Wedding Showcase 💍
📅 18 April | 11am–4pm
✨ Explore the venue
✨ Meet hand-picked suppliers
✨ Chat with our expert team
Start planning your perfect day.
🔗 Find out more via the link in our bio.
#DartmouthHouse #WeddingShowcase #LondonWeddingVenue #WeddingInspo #LondonWeddings #WeddingPlanning
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Mar 25
✨ Spring at its finest ✨
Planning something special? We’ve got two limited-time offers designed to make your event unforgettable…
💍 Wedding Ceremony Offer
Last-minute civil ceremony hire from £4,000 + VAT
Includes exclusive use (12pm–5pm), furniture setup, Champagne, 20 elderflower mocktails & nibbles 🥂
🌿 Spring Drinks Offer
Courtyard hire from £4,000 + VAT minimum spend
Perfect for corporate drinks, networking events, or team celebrations
📅 Available for events until 30th April 2026
📌 Book by 23rd April 2026 using code SpringDH
T&Cs and minimum numbers apply
Enquire now to secure your date 💫
#SpringEvents #WeddingVenue #CivilCeremony #EventPlanning #UKWeddings #CorporateEvents #NetworkingEvents #VenueHire #SpringOffers
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Pop in for lunch at Six Clerks, served daily from 12–3pm.
Fresh, seasonal dishes and bold, confident flavours. Perfect for a quick midday reset or an unhurried catch-up.
Walk in or book your table and make today’s lunch plans an easy win.
#SixClerks #LondonDining #LunchPlans
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Say “yes” to inspiration 💍✨
Join us at The London Wedding Show for a weekend filled with dreamy dresses, expert suppliers and everything you need to bring your perfect day to life 🤍
• Business Design Centre, Islington
• March 28th - 29th
• Stand B16
Let the planning begin…
#thelondonweddingshow #weddinginspo #bridetobe #weddingplanning #BelleBridal
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Mar 18
Save the date 💍
📅 18 April | 11am–4pm
✨ Tour Dartmouth House
✨ Meet hand-picked wedding suppliers
✨ Chat with our expert team
Your dream wedding starts here!
🔗 Link in bio for more info.
#DartmouthHouse #WeddingShowcase #LondonWeddingVenue #WeddingPlanning #WeddingInspo #LondonWeddings #WeddingReel
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We’re pleased to be exhibiting at the Miss Jones Spring Fair this March 🌷
Join us at the Nobu Portman Square Hotel for an evening of networking, industry connections and the opportunity to discover some fantastic brands.
• Thursday 19th March
• 5:30–9:30pm
• Nobu Portman Square Hotel
Register to visit our stand and be in with a chance of winning one of 40+ prizes.
We look forward to seeing you there.
#MissJonesGroup #SpringFair #NetworkingEvent #LondonEvents IndustryNetworking #MissJones
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Mar 12
Save the date 💍
Dartmouth House Wedding Showcase
📅 18 April | 11am–4pm
✨ Tour the venue
✨ Meet expert suppliers
✨ Start planning your dream wedding
🔗 Link in bio for more info.
Video by @candidmoments_content
#DartmouthHouse #WeddingShowcase #LondonWeddingVenue #WeddingPlanning #WeddingInspo LondonWeddings
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Make time for lunch at Six Clerks, served 12–3pm.
Seasonal plates, confident flavours and just the right setting to reset your day. Whether it’s a quick bite or a long, leisurely pause.
Book your table and turn your lunch break into something worth savouring.
#SixClerks #LondonDining #LunchBreak
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A peek into how we celebrated International Women’s Day at Graysons 💐
Taking a moment to appreciate and celebrate the incredible women across our teams who help make everything we do possible.
#Graysons #InternationalWomensday #IWD #WomensDay
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