Campaign group the Twentieth Century Society has submitted an application to get grade II*-listed status for Will Alsop’s Stirling Prize-winning Peckham Library, prompted by proposals for alterations to the building.

The group said plans to replace existing extractor fans with new air-source heat-pump equipment and acoustic enclosures on the roof of the south London landmark  would “negatively impact” the significance of the building, which won the highest prize in UK architecture in 2000.

Designed by Alsop at the Alsop & Störmer practice, the five-storey building has a distinctive rooftop, that the C20 Society says would be particularly harmed by the proposals.

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