A switchback cycling and walking path extends from the street to the roof at Ledger, designed by Michel Rojkind and Callaghan Horiuchi with Marlon Blackwell Architects.
These cladding and building envelope products elevate performance and design.
Conceived during the Gilded Age, the Bay Area landmark was a showcase of civic ambition when it opened in 1898.
A deceptively simple project manages to fit soaring volumes and a generous courtyard on a tight budget.