San Yi Plumbing LTD. is a plumbing contractor with 6 tracked San Francisco building-permit projects on record, with the latest filing in that record 42 days ago. Its filings (Jan 2025 to Jul 2026) are concentrated in Financial District/South Beach and Lone Mountain/USF, 100% residential. A typical project in the record declares $10K–$435K. If you work at San Yi Plumbing LTD., claim this page to add a description.
Filed 42 days ago
#200
by SF filing activity
among SF specialty contractors, 90 days to Aug 23, 2026
6
projects
from 28 filings
7/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
Lone Mountain/USF single-family renovation
Grade DActive 1 month ago · 3 filings · San Yi Plumbing LTD.: specialty contractor
Revision to bpa and. updates to t24
GC named · 3 specialty contractors identified
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$640K West of Twin Peaks single-family renovation
Grade AActive 4 months ago · San Yi Plumbing LTD.: specialty contractor
All new wiring, new main upgrade 200 amps, 50 lights, 25 swicthes, 50 receptacles, 3 fans, 1 dish washer, 1 garbage disposal,1 microwave, 1…
GC named · Engineer identified · Specialty contractor identified
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$32K Financial District/South Beach multifamily renovation
Grade BActive 5 months ago · San Yi Plumbing LTD.: specialty contractor
Shower pan installation & water test
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 San Yi Plumbing LTD.: addresses, values, project teams
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Typical project$10K–$435K$50K typical2.9× the SF median ($17K)Last filed42 days agoFinancial District/South Beach · Aug 5, 2026Last 90 days5 active0 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
Financial District/South Beach20%
Lone Mountain/USF20%
Marina20%
Noe Valley20%
Portola20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Erwin J Otoole PE | Architecture | 1 | |
| 2 | L Wong Engineering | Engineering | 1 | |
| 3 | LTD Architecture | Architecture | 1 | |
| 1 | Saturn Construction Co | General contractor | 2 | |
| 2 | Edward Fitzgerald Electric | Electrical contractor | 2 | |
| 3 | Associated Builders | General contractor | 1 | |
| 4 | Devlin/Mcnally Construction | General contractor | 1 | |
| 5 | Luminalt Energy Corporation | 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 connectedTrade licenses are held by BPELSG. That register is not part of the San Francisco permit record, and we do not yet read it.
Repeat working relationships2 firmsFirms this one appears with on more than one project, out of 13 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does San Yi Plumbing LTD. appear on?▾
PermitPipeline tracks 6 San Francisco building-permit projects for San Yi Plumbing LTD. (Jan 2025 to Jul 2026). 5 had filing activity in the last 90 days.
Does San Yi Plumbing LTD. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of San Yi Plumbing LTD.'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 San Yi Plumbing LTD. work?▾
20% of San Yi Plumbing LTD.'s tracked San Francisco projects are in Financial District/South Beach.
What is a typical San Yi Plumbing LTD. project worth?▾
The median declared value across the 6 San Francisco projects San Yi Plumbing LTD. has on record that state one is $50K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as San Yi Plumbing LTD.?▾
San Yi Plumbing LTD. most frequently appears on the same San Francisco permit filings as Saturn Construction Co, Edward Fitzgerald Electric, Associated Builders. Appearing together indicates association on shared filings, not a proven working relationship.
Is San Yi Plumbing LTD. a plumbing contractor?▾
San Yi Plumbing LTD. is listed as a plumbing 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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