New London Architecture

UNESCO - Building V

Under Construction

A pioneering retrofit first, retaining and reusing as much of the existing facade as possible; preserving intricate detailing whilst extending the life of a building.

After 55 years of operation, UNESCO's Building V is being transformed – maintaining the building's architectural heritage and reusing its existing facade. Piloting a pioneering approach to recycling flat glass, the existing glass panels will be removed, transported to a recycling factory, and remanufactured into internal glass partitions. Prefabrication in the workshop, an innovative block curtain wall system, and a facade kit of parts approach supports the reuse process – resulting in a reduction of 500 tCO2eq and saving 113 tonnes of existing glazing (equivalent to 34 tCO2eq).

Project information


Under Construction


* N/A Outside of London


May 2025


7 Pl. de Fontenoy, 75007 Paris, France

Team Credits



Facade Engineer

Eckersley O'Callaghan

Structural Engineer

Eckersley O'Callaghan

Last updated on


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