Campaign group the Twentieth Century Society has said the first public views of new fenestration installed at Ernő Goldfinger’s grade II* Balfron Tower has confirmed its worst fears about the building’s renovation.

Screening was last week removed from the top few storeys of the brutalist landmark in east London, built between 1965-1967 as social housing and now being redeveloped by housing association Poplar Harca in conjunction with developer Londonewcastle and Telford Homes.

Project architect Studio Egret West won planning consent to strip and refurbish the 146-home block in 2015 as part of plans to convert the building into private luxury homes. The changes are in line with that approval, which had the support of government heritage advisor Historic England.

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