1325 Howard Ave #822, Burlingame, CA 94010
Tri Line Construction Co is a general contractor with 6 tracked San Francisco building-permit projects on record, with the latest filing in that record 27 days ago. Its filings (May 2025 to Jul 2026) are concentrated in Excelsior and West of Twin Peaks, 100% residential. A typical project in the record declares $4K–$50K. If you work at Tri Line Construction Co, claim this page to add a description.
Filed 27 days ago
#492
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
6
projects
from 13 filings
3/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$34K West of Twin Peaks single-family renovation
Grade DActive 1 month ago · Tri Line Construction: GC
Bathroom remodel: new recessed lights, wall sconce, outlets, bathroom fan and heated floor
GC named · Specialty contractor identified
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$4K West of Twin Peaks single-family renovation
Grade DActive 1 month ago · Tri Line Construction: GC
Install 1/2" cot plywood on existing roof for roofing by other. 2100 sqft of plywood. not visible from the street
GC named
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$150K Excelsior single-family renovation
Last active May 2025 · Tri Line Construction: GC
Upgrade meter main panel to 200 amp
GC named
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3 more
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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.
6 project records for Tri Line Construction Co: addresses, values, project teams
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Typical project$4K–$50K$40K typical2.4× the SF median ($17K)Last filed27 days agoWest of Twin Peaks · Aug 21, 2026Last 90 days3 active3 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
Excelsior33%
West of Twin Peaks33%
Inner Sunset17%
Sunset/Parkside17%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | William Liang | Engineering | 1 | |
| 1 | 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 licenseCSLB Contractor #683711As filed on 6 permits
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 Tri Line Construction Co appear on?▾
PermitPipeline tracks 6 San Francisco building-permit projects for Tri Line Construction Co (May 2025 to Jul 2026). 3 had filing activity in the last 90 days.
Does Tri Line Construction Co work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Tri Line Construction Co'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 Tri Line Construction Co work?▾
33% of Tri Line Construction Co's tracked San Francisco projects are in Excelsior.
What is a typical Tri Line Construction Co project worth?▾
The median declared value across the 6 San Francisco projects Tri Line Construction Co has on record that state one is $40K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Tri Line Construction Co?▾
Tri Line Construction Co most frequently appears on the same San Francisco permit filings as Luminalt Energy Corporation, William Liang. Appearing together indicates association on shared filings, not a proven working relationship.
Is Tri Line Construction Co a general contractor?▾
Tri Line Construction Co 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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