Engineering 350 is an engineering firm with 4 tracked San Francisco building-permit projects on record, with the latest filing in that record 37 days ago. Its filings (Jun 2025 to Jul 2026) are concentrated in Tenderloin and Lakeshore, 100% residential. A typical project in the record declares $814K–$27.5M. If you work at Engineering 350, claim this page to add a description.
Filed 37 days ago
#653
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
4
projects
from 8 filings
1/16
active week
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$814K Lakeshore renovation
Grade AActive 1 month ago · Engineering 350: engineer
Install new panel to power new heat pumps and water heater
GC named · Design firm identified · Specialty contractor identified
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$13.0M Tenderloin multifamily renovation
Active 11 months ago · Engineering 350: engineer
Convert basement parking to loading zones only; electrification of bldg heating & water heating systems; upgrading lights to led; convert…
GC named · Design firm identified · Engineer identified · Specialty contractor identified
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$202K Tenderloin multifamily renovation
Grade AActive 3 months ago · Engineering 350: engineer
Installation of a new fire alarm and detection system. in 100% affordable housing project with priority permit processing under mayor's…
GC named · Design firm identified · Specialty contractor identified
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1 more
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4 project records for Engineering 350: addresses, values, project teams
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Typical project$814K–$27.5M$13.0M typical765× the SF median ($17K)Last filed37 days agoLakeshore · Aug 10, 2026Last 90 days1 active1 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Tenderloin50%
Lakeshore25%
Mission25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Structus | Engineering | 1 | |
| 1 | Ca United Mechanical, Inc | General contractor | 2 | |
| 2 | Cahill Guzman Construction Group JV | General contractor | 1 | |
| 3 | D & H Construction | General contractor | 1 | |
| 4 | Securecom 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 licenseCalifornia architect #M31584On 2 of this firm's filings. Architect licenses are held by individuals, not by firms.
Repeat working relationships1 firmFirms this one appears with on more than one project, out of 5 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Engineering 350 appear on?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Engineering 350 (Jun 2025 to Jul 2026). 1 had filing activity in the last 90 days.
Does Engineering 350 work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Engineering 350'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 Engineering 350 work?▾
50% of Engineering 350's tracked San Francisco projects are in Tenderloin.
What is a typical Engineering 350 project worth?▾
The median declared value across the 4 San Francisco projects Engineering 350 has on record that state one is $13.0M (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Engineering 350?▾
Engineering 350 most frequently appears on the same San Francisco permit filings as Ca United Mechanical, Inc, Cahill Guzman Construction Group JV, D & H Construction. Appearing together indicates association on shared filings, not a proven working relationship.
Is Engineering 350 an engineering firm?▾
Engineering 350 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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