
Case study · Projection mapping · Nuit Blanche London
Concrete Canopy
Thirty seconds each, and the building grows.
For Nuit Blanche London 2025, Concrete Canopy transformed the historic Kingsmill’s Department Store façade into a living digital organism — a place where architecture and nature merge in an evolving audiovisual symphony. Vegetation climbed the stone, flowers opened across the window bays, and the building appeared to be reclaimed by the growth it had displaced.
The piece was participatory by design. Rather than playing a fixed film at the crowd, it handed the controls over: a custom web application put visitors in a queue on their own phones, and each person in turn got thirty seconds to shape the visuals and the generative soundscape in real time. Nobody watched the same show, because the show was being made by whoever was standing there.
That turn-taking is the argument. A projection this size is usually something a city does to a street; this one only worked if strangers were willing to line up, take a turn, and hand it on. The tension between built and natural environments was the subject on the wall — collective responsibility for the shape of a city was the thing happening on the sidewalk.
Concrete Canopy was both visual poem and interactive playground: an invitation to listen, engage, and reimagine how we inhabit our cities.
How it works
Map the building, not a screen
A single 12,000-lumen projector throws onto the Kingsmill's façade, and the whole surface — columns, cornices, window bays — is mapped in TouchDesigner so the image follows the architecture instead of lying flat across it.
Join the queue on your phone
A web app run from the sidewalk puts you in line. No app store, no sign-up — you open a page and wait your turn with everyone else.
Take your thirty seconds
When your turn comes you get the control, and the values you send drive the visuals and the generative audio live. Then it passes to the next person in line.



Credits
- Occasion — Nuit Blanche London 2025
- Projection partner — PA Shop
- Research & creation support — Ontario Arts Council
- Research & creation support — Government of Ontario
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