Retrofit & sustainable

The AJ champions the retrofit of existing buildings with the AJ Retrofit Awards and the RetroFirst campaign. Here you can find good examples of how architects have reused existing buildings, or designed highly sustainable buildings

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Building review: 6a’s Holborn House

This £3.4m makeover of a former basement gymnasium by 6a Architects, adding two new floors, gives a new public face and facilities to a building run by the Holborn Community Association. Lucy Bullivant paid a visit