The Project
Illuminated River aerial shot
Jason HawkesA Gift to London
Illuminated River began with a bold idea: to create a unified light artwork across London’s central bridges, one that respected each bridge’s identity, history and heritage, while connecting them into a coherent experience after dark. At 3.2 miles in length, Illuminated River spans from London to Lambeth bridges, making it the longest public art commission in the world. The project was conceived as a gift to London and was largely funded by private philanthropy, realised by a small team at the Illuminated River Foundation, with the backing of the Mayor of London.
Completed Illuminated River artwork on Blackfriars, Waterloo, Golden Jubilee, Westminster and Lambeth bridges. Videography: Paul Crawley.
The Artwork
The subtly moving sequences of LED light reveal the beauty of the existing architecture of London’s bridges and their relationship to the river that flows beneath them. It is designed and programmed by New York-based artist Leo Villareal, working with British architecture practice Lifschutz Davidson Sandilands and 18 specialist teams, including lighting designers Atelier Ten.
Villareal’s practice centres on animating architecture without overwhelming it, and for Illuminated River he worked with structures spanning three centuries. On Millennium Bridge he revived Foster + Partners’ original ‘Blade of Light’ concept, while lighting on Westminster Bridge reveals its historic latticework, painted green to match the seats in the House of commons. At Waterloo Bridge, subtle colour washes highlight the sculptural form of its central spine for the first time.
Illumination on the first four bridges was unveiled in 2019 and five more were completed in April 2021. The bridges are transformed nightly from dusk until 2am and will continue to be until at least 2029, free for everyone to experience and enjoyed by millions annually.
The River Environment
From the outset, the project prioritised environmental impact, commissioning the first luminance studies of the Thames alongside bat and bird surveys to understand and reduce light pollution. Findings were shared as a public resource. Outdated bridge lighting was replaced with smart, energy‑efficient LEDs, significantly reducing light spill and energy use. Lighting now runs from dusk until 2am, protecting the natural darkness essential to the river’s ecosystem.
The project was an extraordinary collaboration between creative teams working with the Mayor of London, 7 local authorities, national agencies, heritage bodies and bridge owners.
From the Fourth Plinth to Art on the Underground, our city has a rich heritage of showcasing public art, and I am delighted that Illuminated River is bringing more free and accessible artwork to Londoners. The Thames has played a key role in the growth and development of our capital for centuries, and this unique artwork will help Londoners and visitors see it in a whole new way. The Illuminated River will celebrate the unique architecture and heritage of our bridges, showcase creativity, boost life at night and transform the way we think about the Thames.
Illuminated River’s original vision spanned from Albert Bridge in the west to Tower Bridge in the east. This animation shows artist Leo Villareal’s initial design concepts for the 14 bridges.