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!

Fish ’n’ chips... but not as you know it. 🐟
Pressed potato, rich cod’s roe, and a touch of vinegar come together in a reimagined classic that’s bold, nostalgic and unmistakably unique.
Get your ticket to the platform and taste the twist for yourself. Visit the link in our bio to book your seat at the table.
#SixClerks #HiddenPlatform #SupperClubLondon #BritishFood
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Feb 18
Love in every glance 🥰
From stolen smiles to tender embraces, A&A’s wedding captured the beauty of connection and the elegance of Dartmouth House. Every moment with the bride and groom tells a story of love and romance.
#DartmouthHouse #LuxuryWeddings #BrideAndGroom #MayfairBride #EditorialWedding #LondonWeddingVenue #RealWeddings #RomanticMoments #UKLuxuryVenue
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A glimpse of our Hidden Platform Cocktail Menu 🍸
A curated collection of bold, story-led creations designed to complement The Hidden Platform experience. Expect drinks that are as immersive as the night itself.
Join us and step into the story. Book your ticket through the link in our bio.
#SixClerks #TheHiddenPlatform #CocktailExperience #SipTheStory
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All aboard The Hidden Platform at Six Clerks 🎫
Led by Scott Dineen, this immersive supper club blends bold flavours with cinematic storytelling for a night where every course reveals a new chapter.
Book now through the link in our bio and step onto the platform.
#TheHiddenPlatform #SixClerks #ImmersiveDining #CulinaryTheatre
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Step onto the platform and into something unexpected... 🚆
On 5th March, Six Clerks hosts our Hidden Platform Supper Club, a one-night-only dining experience.
Reserve your place now by visiting the link in our bio 🔗
#SixClerks #HiddenPlatform #SupperClub #LondonDining #PrivateDining
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Feb 11
A glimpse of perfection 🤍
Dartmouth House is the ultimate canvas for styled photoshoots, grand architecture, exquisite details and editorial-level styling come together to inspire luxury weddings and unforgettable moments.
#DartmouthHouse #LuxuryWeddings #StyledShoot #MayfairBride #EditorialWedding #LondonWeddingVenue #UKLuxuryVenue #WeddingInspo
Photography @camillajoyphotography
Concept Creator, Planner & Stylist the_bailey_events_company
Venue @dartmouthhouseweddings
Florals Design and Styling @flourishandgrace
Assistant on the day @roberta_burcheri_events
Harpist @Soraya_says
Models @jaylinrrobinson
@_kinz1
Bridal Gown @cynthiagraftonholt
Groom’s Suit @princemadebespoke
Bridal Shoes @di_hassall
Headpieces, Earrings &Hat @saintbethofficial2
MUA @bridesbyaina.m
Hair @cgaskinhair
Embroidered Napkins @bespoke_table_dressing
Stationary + Calligraphy @lyndaathey
Cake and dessert Designer @erzuliecakes
Linens Rental @northfieldslinen
Tableware Rentals @thebaileystablewarecompany
Furniture Rentals @beamazedevents
Candles @elegante_candles
Veil @visionaryveils
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Feb 4
Where love meets grandeur ✨
Our grand staircase is the perfect backdrop for romantic moments. Dramatic entrances, stolen glances and iconic photographs that last a lifetime.
#DartmouthHouse #LuxuryWeddings #GrandStaircase #MayfairBride #EditorialWedding #LondonWeddingVenue
Concept, Design and Planning @roberta_burcheri_events
Photographer @malsphotographyuk
Second photographer @leanneashcroftphotography
Videographer @vicriverofilms
Gown Designer @shimmering_ivory
Suit Designer @rasavilerow
Accessories designer @pearluminous_
Bridal shoes @di_hassall
Stationary Suite @lyndaathey
Tableware and linen @maisonmargauxltd
Furniture @londoneventhire
Candelabra @edenevent
Female Model @asweetrohmance
Male Model @oliverfernandez1
HMUA @cjchairandmakeup
Floristry @shilpareddyflowers
Shoot assistant on the day @celebratewithrachellouise
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Jan 26
Dearest Gentle Reader,
On Thursday, the ton gathered at Dartmouth House for the launch of the Bridgerton collection, hosted by @theofficialpandora and @incaevent
The Bridgerton collection has proved itself to be the diamond of the season 💎
#PandoraXBridgerton #PandoraAndBridgerton #BridgertonCollection #Pandora #DartmouthHouse
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Jan 21
Before the “I do” ✨
S&O’s wedding setup at Dartmouth House is a masterclass in luxury, elegant floral arrangements, refined décor and an atmosphere that promises unforgettable memories.
#DartmouthHouse #LuxuryWeddings #MayfairBride #EditorialWedding #LondonWeddingVenue #WeddingInspo #UKLuxuryVenue #ElegantEvents #RealWedding
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Our famous Supper clubs are back for 2026 🍽️
Save the date, 5th March 2026
More information to come…
#sixclerks #supperclubs #londondining #london
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Jan 14
Your Fashion Week moment deserves an iconic setting ✨
From runway presentations to champagne receptions, Dartmouth House provides a backdrop of historic elegance and modern luxury, right in the heart of Mayfair.
🗓️ 19th -23rd February
🗓️ 17th - 21st Feb
Host fashion where style belongs.
#DartmouthHouse #FashionWeekVenue #LondonFashionWeek #LuxuryEvents #MayfairStyle #EditorialEvent #HighEndVenue #FashionMoments #FashionIndustry
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Did you say yes this Christmas? 💍
If you got engaged over the festive season, congratulations!
Now it’s time to start planning your perfect day and Middle Temple could be the venue you’ve been dreaming of 🤍
Historic, elegant, and unforgettable.
👉 Explore Middle Temple with Graysons
#JustEngaged #NewlyEngaged #ChristmasEngagement #WeddingVenueInspo #LondonWeddingVenue #MiddleTemple #WeddingPlanning #EngagedLife #SayYes #Graysons
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Jan 7
Where timeless romance meets modern luxury 🤍
M&K’s wedding at Dartmouth House was a masterpiece of refined styling, thoughtful details and effortless sophistication.
#DartmouthHouse #LuxuryWeddings #MayfairBride #EditorialWedding #LondonWeddingVenue #RealWeddings #UKLuxuryVenue #WeddingInspo
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Happy New Year from all of us at Graysons ✨
As we wrap up 2025, we’re looking back on an incredible year filled with incredible events and wonderful people.
Thank you to everyone who celebrated with us, here’s to 2026 🥂
#LondonEvents #EventInspiration #VenueLife #EventDesign #CelebrateInStyle
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Wishing you a Merry Christmas from everyone at Graysons 🎄 ...
Graysons 2025 wrapped 🍽️
Another year of unforgettable events, beautiful plates and guests who came hungry for something special.
Here’s to what we served and what’s still to come.
#Graysons #2025Wrapped #EventCatering #LondonEvents
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The best thing you’ll ever do… ✨
#graysons #londonvenues #catering #london #londonevents
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Dec 17
Sun-drenched romance and flowers in full colour 🌺
E&J’s summer wedding transformed Dartmouth House into a vibrant garden of luxury, bold blooms, radiant styling and the kind of joy that only summer can bring.
#DartmouthHouse #LuxuryWeddings #SummerWedding #MayfairBride #LondonWeddingVenue #EditorialWedding #RealWeddings #UKLuxuryVenue
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Roast, relax and raise a festive glass 🎄
Make your Christmas lunch extra special! Join us 12–3 pm at Six Clerks for our Christmas Lunch Menu and pair it with a signature festive cocktail.
🎁 Reserve your table today, lunch and festive cheer await!
#SixClerks #ChristmasLunch #FestiveCocktails #ChristmasMenu #ChristmasAtSixClerks #LunchVibes #Foodstagram #InstaFoodie #EatDrinkBeMerry #FestiveFlavours #BookNow
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Dec 10
When the sun sets, the magic begins ✨
Dartmouth House transforms by night into a world of candlelit beauty, intimate ambience and modern luxury, the perfect backdrop for unforgettable receptions.
📸 @thekensingtonphotographer
#DartmouthHouse #LuxuryVenue #EveningReception #LondonVenue #LuxuryEvents #UKLuxuryVenue
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