Practice tables 鈥榮ensitive鈥� restoration and upgrade after brutalist South Bank offices get grade II listing
AHMM has reworked its plans to upgrade Denys Lasdun鈥檚 IBM building on London鈥檚 South Bank for the second time in a year after the brutalist block won a grade II listing from Historic England.
The practice鈥檚 original proposals for the office complex, completed in 1983, were floated early last year and envisaged the creation of an extra 20,000sq m of space through the addition of two new storeys.
But the scheme for Wolfe Commercial Properties Southbank 鈥� owned by the United Arab Emirates-based Easa Saleh Al Gurg Group 鈥� was drawn up before the building was listed, in part for its 鈥渁rchitectural concordance鈥� with the neighbouring National Theatre, also designed by Lasdun.
Post-listing changes to the scheme failed to win the support of campaign group the Twentieth Century Society and AHMM has now , which Wolfe says will 鈥渟ensitively restore and upgrade the building鈥�.
The proposals cut the amount of new space set to be created at the building down to 11,000sq m, which Wolfe said would support 950 new jobs 鈥� down from the 2,000 mooted in last year鈥檚 plans.
AHMM鈥檚 January 2020 proposals
However it said the proposals were a 鈥渞espectful adaptation to the existing building鈥� that would 鈥渟ignificantly enhance its setting within the conservation area鈥� and see the retention of more than 80% of the existing building鈥檚 structure.
AHMM director Simon Allford said the new design would 鈥渟ensitively preserve鈥� the architectural character of the building.
鈥淭he design will secure its long-term sustainable future as a 21st-century workplace that better engages with the surrounding public space on the South Bank,鈥� he said.
鈥淥ur approach retains the majority of Sir Denys Lasdun鈥檚 building and the idea of floors as strata lifted off the brick podium and connected by sculptural staircases. The existing concrete cladding of strata and plant tower will remain the defining reality of the material palette and silhouette.鈥�
Wolfe said it expected to submit a planning application for its proposals to Lambeth council in the coming months, following feedback from its pre-application consultation.
Stanhope is development manager on the project.
Others working on the job include consultant Exigere, Heyne Tillett Steel as structural engineer and Watkins Payne as M&E engineer. CBRE is planning consultant while Butler and Young is approved inspector.
The IBM building, which is the firm鈥檚 European headquarters, was once owned by Alan Sugar, whose real estate arm Amsprop sold it to Saudi investors eight years ago in a deal understood to be worth around 拢120m.
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