
10-11 Carlton House Terrace
Events at 10-11 Carlton House Terrace
Full AV production, entertainment and event management for corporate events and private celebrations at 10-11 Carlton House Terrace.
Your production partner at 10-11 Carlton House Terrace.
We provide AV production, entertainment and event management at 10-11 Carlton House Terrace, a Grade I listed Georgian townhouse in the heart of Westminster. With views across St James’s Park and the Mall, it gives your event a distinctly London setting.
From the first technical plan to the final guest leaving, we’ll help you shape the production around the room, the running order and the experience you want to create.
Details
Capacity: Up to 700 across the venue. Individual spaces accommodate up to 100 theatre-style or 90 for a seated meal.
Location: In the heart of Westminster, overlooking St James’s Park and surrounded by London landmarks.
Style: A Georgian townhouse designed by John Nash and completed in 1833, with period character and carefully updated event spaces.
Features: Ten event spaces, flexible room layouts, natural daylight, and spaces suited to conferences, dinners, awards and celebrations.
Licensing: Licensed for wedding ceremonies. Late extensions may be available until 2am, subject to the required permissions.
Accessibility: Public floors are wheelchair accessible via lifts. Step-free entry is available using the assisted lift at No. 11. The venue also has accessible toilets and a dedicated Quiet Room for rest or prayer. First aid and mental health first aid trained staff are available.

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What we bring to the space
Clownfish Events covers the full production of events at 10-11 Carlton House Terrace: the AV, entertainment and management of the day itself.

AV Production
We’re the production partner for events at 10-11 Carlton House Terrace. Our team plans and delivers the sound, lighting, video and staging your event needs.
With ten distinct spaces, the right setup depends on the room and the format. We’ll shape the production around your audience, whether you’re presenting to a theatre-style crowd or bringing several rooms together for a larger event.
We provide the sound, lighting, video and staging for your event. Our team plans and runs the setup around your chosen room and brief.
Whether you’re hosting a conference, awards evening or company celebration, we’ll make the production feel like part of the event from the start.
Event Entertainment
We bring Clownfish entertainment to 10-11 Carlton House Terrace, from interactive games and photo booths to live acts, with our own hosts there to get guests involved.
Our equipment is owned by us and kept show-ready, so what arrives is what you saw in your proposal.
Our hosts work the room throughout the event, helping guests join in and bringing a little more energy to the occasion.


Event Management
We manage your event from the first brief through to pack-down, keeping the moving parts organised so you can focus on your guests. You’ll have one Clownfish team looking after the plan, the production and the schedule.
We’ll build the run of show with you, map out key timings and coordinate with the 10-11 Carlton House Terrace team on access, room layouts and the practical details. If your event uses several spaces, we’ll plan how guests and the programme move between them.
On the day, our team manages setup, cues and changeovers through to pack-down. If timings shift, we’ll keep the plan moving and let you get on with hosting.
Audio Visual Production for your Company’s Key Events
At Clownfish Events, we believe great AV production is the backbone of any successful event. From dynamic lighting designs to crystal-clear sound systems, we provide the tools and expertise to captivate your audience and create lasting memories.
Private celebrations at 10-11 Carlton House Terrace.

We help you create private celebrations at 10-11 Carlton House Terrace, from wedding receptions and milestone birthdays to dinners and special occasions. Its Georgian rooms give the event a proper sense of occasion, right in the heart of Westminster.
With ten event spaces to choose from, you can shape the day around your guest list, from an intimate gathering to a celebration that uses several rooms.
We can bring the production, entertainment and event management together, then take care of the setup and running on the day.
Real-life customer stories.
The biggest thing on the day was the complete transformation of the room… It was essentially a big studio before and they completely transformed it into what was an incredible gala dinner
Jess Valentine Marketing Manager, Surrey Sports Park
Have we reeled you in?
Organising the complicated stuff doesn’t have to be complicated.
STEP 1
Share your event details with us
We’ll chat through your event - we’re real people here to answer any questions you might have.
STEP 2
Get your bespoke
Clownfish plan
We’ll craft a tailored quote and work with you to ensure your event is just right.
STEP 3
Celebrate with your colleagues (while we do the work)
Sit back and relax while we take care of creating a 5-star event experience.
Flawless in Action.
Every event tells a story, here are a few that went from vision to flawless reality.
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British Watchmakers Day
Event Inspiration
7 January 2025
Clownfish Events -
XP80 Boat Launch
Event Inspiration
7 July 2023
Clownfish Events




Jess Valentine Marketing Manager, Surrey Sports Park