Semco is an engineering firm with 51 tracked San Francisco building-permit projects on record, with the latest filing in that record 33 days ago. Its filings (Jan 2025 to Jul 2026) are concentrated in Noe Valley and Bernal Heights, 100% residential. A typical project in the record declares $23K–$251K. If you work at Semco, claim this page to add a description.
Filed 33 days ago
#38
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
51
projects
from 137 filings
13/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$990K Marina single-family renovation
Grade AActive 2 months ago · Semco: engineer
Work includes a small rear horizontal addition at the existing 1st and 2nd flrs, a new basement level below the house. for a garage and…
No GC named · Architect identified · 2 anticipated categories not yet filed
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$1.8M Marina multifamily renovation
Grade A+Active 12 days ago · Semco: engineer
Convert storage to gym. reconfigure interiors of the lower 2 units. reconfigure interiors & horizontal addition of the upper unit with a…
GC named · Architect identified · Engineer identified · 2 anticipated categories not yet filed
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$195K Mission single-family renovation
Grade BActive 26 days ago · Semco: engineer
Work category: 1m; install a direct vent gas insert per the manual specs. gas line by others
GC named · 1 other firm identified · 1 anticipated category not yet filed
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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 names and mailing addresses, and full filing histories are part of the paid product.
51 project records for Semco: addresses, values, project teams
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Typical project$23K–$251K$120K typical7.1× the SF median ($17K)Last filed33 days agoMission · Aug 14, 2026Last 90 days13 active5 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak May 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Noe Valley31%
Bernal Heights28%
Outer Richmond17%
Glen Park14%
Hayes Valley10%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Apparatus | Architecture | 3 | |
| 2 | Martinkovic Milford Architects | Architecture | 3 | |
| 3 | Semco Engineering Inc. | Engineering | 3 | |
| 4 | Anne Forell Architecture | Architecture | 2 | |
| 5 | Jeffrey A. Eade Architect | Architecture | 2 | |
| 1 | Custom Construction Enterprises | General contractor | 3 | |
| 2 | Cardea Bldg Dba Dimension Design Group | General contractor | 2 | |
| 3 | Keegan Contruction Inc. | General contractor | 2 | |
| 4 | Modern Craft Construction | General contractor | 2 | |
| 5 | Noa Construction LLC | General contractor | 2 |
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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 licenseCalifornia architect #S4605On 1 of this firm's filings. Architect licenses are held by individuals, not by firms.
Repeat working relationships16 firmsFirms this one appears with on more than one project, out of 83 in total.
Permit speed145 days112 days longer than the SF median
based on 11 firm filings vs 4,334 SF filings
based on 11 firm filings vs 4,334 SF filings
Frequently asked questions
How many SF projects does Semco appear on?▾
PermitPipeline tracks 51 San Francisco building-permit projects for Semco (Jan 2025 to Jul 2026). 13 had filing activity in the last 90 days.
Does Semco work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Semco'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 Semco work?▾
31% of Semco's tracked San Francisco projects are in Noe Valley.
What is a typical Semco project worth?▾
The median declared value across the 51 San Francisco projects Semco has on record that state one is $120K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Semco?▾
Semco most frequently appears on the same San Francisco permit filings as Apparatus, Custom Construction Enterprises, Martinkovic Milford Architects. Appearing together indicates association on shared filings, not a proven working relationship.
Is Semco an engineering firm?▾
Semco is listed as an engineering firm 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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