Two 1950s-era residential blocks in Bermondsey, South-East London, have been extended upwards using innovative modular rooftop extensions to provide more “affordable” housing.
The infill scheme has effectively ‘grafted’ 30 new additional homes to the existing Antony and Roderick House, owned and managed by Lambeth & Southward Housing Association (LSHA).
The scheme was delivered by HKR Architects – chosen for its experience in modular construction – working with Adstone Construction. They got together with Apex Airspace to compete the detailed design and delivery of the rooftop extension. The initial concept design architect was HTA Design.
Kola Ojeyomi, director of HKR Architects, said: “As a practice we have a wealth of experience using modular construction and are passionate about the many benefits it brings, not only unlocking opportunities for local authorities and developers but also helping existing residents.
“At Antony and Roderick House, modular construction has enabled us to build in a tight urban space above existing buildings, with the time on site considerably less, which reduces the disruption to residents still living there and ensures a high-quality factory finish for all homes.
“With the existing roof coming close to the end of its life, this presented Lambeth and Southwark with the opportunity to add additional affordable homes whilst helping improve the insulation and weathertightness of existing homes. A bespoke exoskeletal steel structure has also been included to carry the weight of the new modular homes.”
The new development has been designed to complement and maintain the integrity of the two original 1950s buildings whilst creating “bookends” to each. Furthermore, HKR says “great care and attention” has been taken to ensure the new homes have minimum impact on the external environment of Antony and Roderick House and its existing residents.
With the bookends and central infills at five storeys in height, it is lower than many of the higher urban blocks within the neighbourhood.
Upgrades to the entrance lobby and a lift have also been added to enhance the public amenity space and make the buildings more appealing as residents arrive. The design also reflects the local architectural vernacular and complements existing buildings.
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