Hathaway Dinwiddie Co.
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#34
by SF filing activity
among SF general contractors, last 90 days
61
projects tracked
Jan 2025 to Jul 2026
11/16
active weeks
weeks with a filing (last 16)
6 of the 61 Hathaway Dinwiddie projects filed new permits in the last 30 days.
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$10.1M Financial District/South Beach renovation
Filed 26 days ago · 4 filings · Hathaway Dinwiddie: GC
12th fl revision to. revision includes updates to structural drawings to reflect a revised slab edge detail due to field conditions. no…
GC named · 2 architects identified · 4 engineers identified
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$9.0M Financial District/South Beach renovation
Filed 3 months ago · 4 filings · Hathaway Dinwiddie: GC
13th fl partial non-structural demolition for a new horizontal exit separation on the 13th fl & revised smoke narrative for an addition of…
GC named · 3 architects identified · 2 engineers identified
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$3.1M Financial District/South Beach tenant improvement
Filed 1 month ago · 3 filings · Hathaway Dinwiddie: GC
Mechanical revisions for 8th floor tenant improvement
GC named · Architect identified · Engineer identified
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Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
61 project records for Hathaway Dinwiddie: addresses, values, project teams
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Middle 50% of declared values: $22K–$2.2M (median $292K)
Most recent filing: Financial District/South Beach · Jul 29, 2026
11 active · 4 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
11
active projects (last 90d)
4
newly observed (last 90d)
Apr 2026
peak month
Project mix · by use
Commercial100%
Geography · by neighborhood
Financial District/South Beach47%
Mission Bay31%
Chinatown13%
Potrero Hill7%
Tenderloin2%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | United Mechanical Inc. | Architecture | 8 | |
| 2 | Perkins&Will | Architecture | 6 | |
| 3 | A G E Consulting | Engineering | 5 | |
| 4 | Amit Wadhwa & Associates | Architecture | 5 | |
| 5 | Hok Inc | Architecture | 4 | |
| 1 | Siemans Building Technology | General contractor | 7 | |
| 2 | R L H Fire Protection Inc | General contractor | 4 | |
| 3 | Rapid Fire Safety&Security Llc Dba Pafa | General contractor | 4 | |
| 4 | Golden Gate Fire Protection Inc | General contractor | 4 | |
| 5 | Novo Construction Inc | General contractor | 3 |
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has Hathaway Dinwiddie Co. filed?▾
PermitPipeline tracks 61 San Francisco building-permit projects for Hathaway Dinwiddie Co. (Jan 2025 to Jul 2026). 11 had filing activity in the last 90 days.
Does Hathaway Dinwiddie Co. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 100% of Hathaway Dinwiddie Co.'s projects are commercial and 0% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Hathaway Dinwiddie Co. work?▾
48% of Hathaway Dinwiddie Co.'s tracked San Francisco projects are in Financial District/South Beach.
What is a typical Hathaway Dinwiddie Co. project worth?▾
Across the 127 tracked projects with a declared value, Hathaway Dinwiddie Co. averages $956K per project (declared value on the permit filing, not contract value).
Which firms does Hathaway Dinwiddie Co. work with most often?▾
Hathaway Dinwiddie Co. most frequently appears on the same San Francisco permit filings as United Mechanical Inc., Siemans Building Technology, Perkins&Will. Appearing together indicates association on shared filings, not a proven working relationship.
Is Hathaway Dinwiddie Co. a general contractor?▾
Hathaway Dinwiddie Co. is listed as a general contractor on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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