420 Montgomery Street
Financial District · San Francisco, CA 94104
Samuel Brannan put up the second of a pair of Montgomery Street buildings on this site in 1853; the building standing here replaced it.
Permit history
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Jun 2023
Roof removed and replaced to meet cool-roof requirements.
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May 2018
Whole-building electrical service replacement and distribution repair, with the architectural, plumbing and HVAC work needed to accommodate it.
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Aug 2016
Voluntary one-for-one replacement of the fire-alarm system, with no associated construction.
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Jul 2012
New exterior maintenance and window-washing system, with new and modified code-compliant guardrails.
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Feb 2005
Fire sprinklers installed on the sixth and ninth floors, the penthouse and mechanical penthouse and part of the ground floor, under the high-rise retrofit ordinance.
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Mar 1991
Seismic bracing of the entry-lobby mezzanine.
Six of the 268 filings on this address are shown; the rest are office tenant improvements floor by floor and the mechanical, electrical and fire-alarm permits that accompany them.
Not yet documented: the architect and builder of the present building; what stood on the parcel between 1853 and 1959; and whether the street numbers used in 1878 correspond to today's, which nothing consulted here establishes. Know any of it? Tell us — just describe it in plain words.