London architecture studio Denizen Works has revealed plans to build a canalboat that doubles as a church, featuring a roof that expands and contracts like the bellows of an organ.
The Floating Church is designed to journey through London's canal network to reach Christian worshippers.
Based on the pop-up sleeping pods found on old VW camper vans, the boat will feature an extendable aluminium roof, allowing it to grow in size for services. A series of pneumatic arms will enable this motion, through the use of worm-screws and air rams.

Denizen Works based this feature on the bellows of a church organ, although it is also reminiscent of a giant accordion.
The Hackney-based architecture studio developed the design in collaboration with boatbuilder Turks, sailmaker Jeckells and yacht specialists Tucker Designs, after winning a competition for the project at the start of 2017. The project was organised by the Diocese of London ? a collection of parishes, chaplaincies and other Christian faith organisations in north London, all overseen by the Church of England.

"As architects, it's been fascinating to engage with a different strand of the construction industry," said Andrew Ingram, architect at Denizen Works.
"Working closely with our collaborators and the Diocese of London, we have designed a boat which we think will become a landmark on the London canal, and provide its users with a unique and inspiring space."
If all necessary funding is secured,...