140 New Montgomery Historic Renovation

San Francisco’s historic Pacific Telephone and Telegraph building office building, built in 1925, is a 26-story steel frame Art deco high-rise designed by Timothy Pflueger. It was restored into the ideal office space, blending timeless design and expansive Bay and city views with 21st-century interior building systems. Tenants have a high degree of flexibility and options: Class A, fully air-conditioned space, or ultra-low and passive energy office space. The primary objective was to attract various tenants and offer flexibility and simplicity at a low cost, thereby making a truly green office affordable to all prospective tenants.

Integral Group provided mechanical and plumbing engineering and preliminary energy and occupant comfort modeling, which integrated façade performance analysis for the $60-million renovation. The renovation required the complete replacement of all major systems of the building as well as seismic upgrades, repurposing of the utility and services, and a new landscaped courtyard at the rear of the building. High-end retail and restaurant spaces occupy the historically preserved ground floor.