New to the market in northeast London, this converted one-bedroom penthouse sits atop a landmarked brutalist apartment building known as the Keeling House. Once a water tank, the concrete shell was expanded and retrofitted by architect Brian Heron in 2017. Heron’s design—which received numerous accolades and was shortlisted for a RIBA award—nods to the structure’s utilitarian origins with a simple palette of materials and clever storage solutions.

modernist architect Sir Denys Lasdun in 1955 and built between 1957–59. The local firm Munkenbeck and Marshall led an award-winning conversion of the building to private apartments in 2001." layout="wide" credit="Photo by Denys Lasdun, courtesy of Aucoot" photoUserId=""/>planning permission to convert the unused rooftop water tank into a three-story penthouse. The project—completed in 2017—received several awards including Best Historic Intervention from New London Architecture’s 2018 “Don't Move, Improve” campaign." layout="wide" credit="Photo by Denys Lasdun, courtesy of Aucoot" photoUserId=""/>

Accessible via an elevator to the 14th floor, the apartment’s entrance opens into the original stairwell, which Heron opted to reinforce with a three-story steel frame to minimize loads on the protected concrete structure. The stairs stop first at the living area and kitchen, while the bedroom and bathroom are located up another flight. A glazed facade floods each level with sunlight from both the eastern and western ends, while fixed glass louvers reduce glare.

All of the interior walls and ceilings are clad in oriented strand board (OSB), which provided Heron with flexibility for mounting fixtures and running the exposed electrical conduits without penetrating the original concrete shell. Adding to the utilitarian flair, exposed shelving and hidden compartments provide additional storage in each room.

In total, the flat offers just over 650 square feet, including one bedroom and one full bathroom. Located in the heart of Bethnal Green, the building offers convenient access to underground/overground lines and is within walking distance to many popular attractions, including the famous Columbia Road Flower Market. Keep scrolling to see more of the property, currently listed for £585,000 (approximately $770,ooo).

louvres. The exterior is clad in glass-reinforced concrete (GRC) that, per the historic society, had to be matched to other sections of the existing concrete structure." layout="" credit="Photo by Denys Lasdun, courtesy of Aucoot" photoUserId=""/>

The Water Tank at Keeling House is currently listed for £585,000 (approximately $781,150) by Aucoot.

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