Towering ceiling voids, a dedicated cinema room and thoughtfully designed focus areas come together in a space built for deep work. The lower ground has been transformed into a smart, efficient environment originally fitted out for visual-effects production — fibre-connected screening and review rooms, a dedicated machine room, and meeting rooms finished in natural materials. Calm, focused and quietly creative, with soft lighting and clean lines throughout.
Towering ceiling voids, a dedicated cinema room and thoughtfully designed focus areas come together in a space that truly works. The lower ground has been transformed into a highly attractive environment, using a smart, efficient configuration that feels anything but secondary.
The original brief called for intelligent use of naturally darker areas to support deep, focused work, alongside fibre-connected screening and review rooms and a dedicated machine room. The cinema room is fully adaptable — natural light or complete blackout, with highly absorbent acoustic materials — making it as suited to team huddles as to screenings.

If you have any questions about Sandbox 140 Aldersgate St or need help arranging a viewing, please reach out.
The address is 140 Aldersgate Street, London EC1A 4HY.
Reception is generally staffed Monday to Friday, 09:00–17:30. The building has a 24/7 concierge and members have 24-hour access.
It was delivered as a bespoke fit-out for a visual-effects production tenant, so it has fibre-connected screening and review rooms, a dedicated machine room and a fully adaptable cinema room with blackout and acoustic treatment.
Showers, secure bike storage, on-site parking, a 24/7 concierge, a micro gym, a roof terrace, regular cleaning and quality coffee.
Yes — the building offers on-site parking.
140 Aldersgate Street sits between the City and Clerkenwell, with the Barbican just moments away. Barbican and St Paul's stations put the Circle, Hammersmith & City, Metropolitan and Central lines on the doorstep, and Farringdon adds the Elizabeth line and Thameslink. Smithfield, Clerkenwell's restaurants and the Barbican Centre are all within a short walk.