AHMM-led proposals to redevelop the former headquarters of the Department for Business and Trade in Westminster have taken a step forward after a five-year certificate of immunity from listing was issued for the building.

The practice aired its plans to rework 1-19 Victoria Street with additional storeys and a new façade in November last year, ahead of the planned departure of civil servants from the building this month.

AHMM’s vision was worked up for building owners Mitsubishi Estate London and developer Stanhope, who want to turn the 30,000sq m-plus structure into a mixed-use development with office accommodation and retail running along Victoria Street.

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