No published contact details.
Lao Engineering is an engineering firm with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 302 days ago. Its filings (Jan 2025 to Aug 2025) are concentrated in Oceanview/Merced/Ingleside and Outer Mission, 100% residential. If you work at Lao Engineering, claim this page to add a description.
Filed 302 days ago
#1,009
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
3
projects
from 6 filings
0/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$150K Outer Mission single-family renovation
Last active Aug 2025 · Lao Engineering: engineer
Plan approved for adu - install 3 meters, main panel and subpanels, 2 gas furnaces, 2 tankless water heater; washer & dryer, dishwasher…
GC named · Specialty contractor identified
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$45K Sunset/Parkside single-family renovation
Last active Feb 2025 · Lao Engineering: engineer
Add new media room on 1/f. 2)install barsink in both new media room and (e) family room on 1/f. 3)remodel 2/f bathroom. 4)add a bedroom…
GC named · Specialty contractor identified
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$3K Oceanview/Merced/Ingleside single-family renovation
Last active Jan 2025 · Lao Engineering: engineer
Comply with nov legalize (e) rear wood landings & stairs; legalize (e) rear sliding door @ 2nd fl. add firewall at property line next to…
No GC named
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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.
3 project records for Lao Engineering: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed302 days agoOuter Mission · Nov 19, 2025Last 90 days0 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Oceanview/Merced/Ingleside34%
Outer Mission33%
Sunset/Parkside33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | 3 N 1 Construction Inc. | General contractor | 1 | |
| 2 | J P Petrie Associates Inc | 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 licenseNot connectedArchitects are licensed by the California Architects Board and engineers by BPELSG. Neither register is part of the San Francisco permit record, and we do not yet read them.
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 2 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Lao Engineering appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Lao Engineering (Jan 2025 to Aug 2025). 0 had filing activity in the last 90 days.
Does Lao Engineering work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Lao Engineering'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 Lao Engineering work?▾
34% of Lao Engineering's tracked San Francisco projects are in Oceanview/Merced/Ingleside.
Which firms appear most often on the same filings as Lao Engineering?▾
Lao Engineering most frequently appears on the same San Francisco permit filings as 3 N 1 Construction Inc., J P Petrie Associates Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Lao Engineering an engineering firm?▾
Lao Engineering 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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