Concretum Operis Inc. is a general contractor with 6 tracked San Francisco building-permit projects on record, with the latest filing in that record 26 days ago. Its filings (Apr 2025 to May 2026) are concentrated in Castro/Upper Market and Lone Mountain/USF, 100% residential. A typical project in the record declares $8K–$340K. If you work at Concretum Operis Inc., claim this page to add a description.
Filed 26 days ago
#1,104
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
6
projects
from 18 filings
2/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
Pacific Heights single-family renovation
Grade CActive 22 days ago · 3 filings · Concretum Operis: GC
Revision to rebuild 2nd/3rd floor stair within existing space. bring framing, rise/run dimensions, stair width, guardrail and handrail…
GC named · 2 architects identified · Engineer identified · Specialty contractor identified
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$51K Twin Peaks single-family renovation
Active 6 months ago · 2 filings · Concretum Operis: GC
Revision to to add window in new bathroom area. rearranging framing living spaces, removing non-structural partition walls
GC named · 2 specialty contractors identified
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$340K Outer Richmond single-family renovation
Active 11 months ago · 2 filings · Concretum Operis: GC
Revision to. (n) footings to be poured with shotcrete
GC named · Specialty contractor identified
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner names and mailing addresses, and full filing histories are part of the paid product.
6 project records for Concretum Operis Inc.: addresses, values, project teams
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Typical project$8K–$340K$51K typical3.0× the SF median ($17K)Last filed26 days agoPacific Heights · Aug 21, 2026Last 90 days1 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Aug 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Castro/Upper Market20%
Lone Mountain/USF20%
Outer Richmond20%
Pacific Heights20%
Presidio20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | DCS Construction | Architecture | 1 | |
| 2 | Doug Lee | Architecture | 1 | |
| 1 | JLQ Construction Inc | General contractor | 1 | |
| 2 | D E Electric | Electrical contractor | 1 | |
| 3 | Lupian Plumbing | Plumbing contractor | 1 | |
| 4 | Wei Li Construction | General contractor | 1 |
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Owner and developer names, and the projects behind each connection, are part of the Leads product.
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
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State licenseCSLB Contractor #1062721As filed on 1 permit
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 6 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Concretum Operis Inc. appear on?▾
PermitPipeline tracks 6 San Francisco building-permit projects for Concretum Operis Inc. (Apr 2025 to May 2026). 1 had filing activity in the last 90 days.
Does Concretum Operis Inc. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Concretum Operis Inc.'s projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Concretum Operis Inc. work?▾
20% of Concretum Operis Inc.'s tracked San Francisco projects are in Castro/Upper Market.
What is a typical Concretum Operis Inc. project worth?▾
The median declared value across the 6 San Francisco projects Concretum Operis Inc. has on record that state one is $51K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Concretum Operis Inc.?▾
Concretum Operis Inc. most frequently appears on the same San Francisco permit filings as DCS Construction, Doug Lee, JLQ Construction Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Concretum Operis Inc. a general contractor?▾
Concretum Operis Inc. 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 SF DBI filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Aug 23, 2026. Project counts, declared values and filing dates are read live from SF DBI filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
Sources
San Francisco Department of Building Inspection permit filings.
Record source
Read directly from SF DBI filings.
Photography
None are shown until the firm supplies them.
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