The Mills Building / The Swig Company
Supports: name, street address, San Francisco, Financial District, office building, historic character. Reviewed 2026-11-03.
Building Profile
Mills Building
San Francisco, CA
The Mills Building is an office building at 220 Montgomery Street in San Francisco’s Financial District. Its historic architecture offers a different setting from a conventional downtown tower.
Availability not verified. No current vacancy, price, suite size or tenant suitability is established by this profile.
Building Snapshot
- Address
- 220 Montgomery Street, San Francisco, CA 94104
- Building type
- Office building
- Area
- Financial District
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Sources and research
The Swig Company
Supports: name, street address, Financial District, office use, historic architecture. Reviewed 2026-11-03.
Identity and research details
This profile concerns Mills Building at 220 Montgomery Street. Mills Tower at 220 Bush Street is a distinct address; no tower measurements or availability claims have been combined with this record.
Building identity: property:ca:san-francisco:220-montgomery-st. Existing archive aliases “The Mills Building” and “220 Montgomery St” were reconciled to this one address. Historical listing observations were not reused.
Facts selected and paraphrased from the attributed official sources. No source photographs, floor plans or marketing narrative reproduced. Reviewed sources do not establish current availability, pricing or suitability.
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