3 N 1 Construction Inc.
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#1450
by SF filing activity
among SF general contractors, last 90 days
7
projects tracked
Jan 2025 to Apr 2026
1/16
active weeks
weeks with a filing (last 16)
Every 3 N 1 Construction project: scopes, declared values, teams and filing history.
Start your 14-day trialSelect 3 N 1 Construction projects
$28K Outer Richmond renovation
Filed 3 months ago · 3 N 1 Construction: GC
In-kind remodeling of 1 bathroom(s) in 2nd fl with 0 shower pan(s)
GC named
View project details →
$1K Sunset/Parkside renovation
Filed 6 months ago · 3 N 1 Construction: GC
Recommencement and completion of work approved under
GC named
View project details →
$12K Inner Sunset renovation
Filed Jan 2025 · 3 N 1 Construction: GC
Bath remodel with water fixture rearrangement. no wall removal. replace in kind. tiles, vanity, convert existing tub to standing showr with…
GC named
View project details →
4 more
3 N 1 Construction projects with project intelligence
Scopes, values, teams and filing history for every one
Start your 14-day trial →
Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
7 project records for 3 N 1 Construction: addresses, values, project teams
Start 14-day free trial
Middle 50% of declared values: $9K–$28K (median $12K)
Most recent filing: Outer Richmond · Apr 30, 2026
0 active · 0 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
0
active projects (last 90d)
0
newly observed (last 90d)
Apr 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Sunset/Parkside72%
Inner Sunset14%
Outer Richmond14%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Lao Engineering | Engineering | 1 | |
| None on shared filings. | ||||
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has 3 N 1 Construction Inc. filed?▾
PermitPipeline tracks 7 San Francisco building-permit projects for 3 N 1 Construction Inc. (Jan 2025 to Apr 2026). 0 had filing activity in the last 90 days.
Does 3 N 1 Construction Inc. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of 3 N 1 Construction Inc.'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 3 N 1 Construction Inc. work?▾
71% of 3 N 1 Construction Inc.'s tracked San Francisco projects are in Sunset/Parkside.
What is a typical 3 N 1 Construction Inc. project worth?▾
Across the 7 tracked projects with a declared value, 3 N 1 Construction Inc. averages $19K per project (declared value on the permit filing, not contract value).
Which firms does 3 N 1 Construction Inc. work with most often?▾
3 N 1 Construction Inc. most frequently appears on the same San Francisco permit filings as Lao Engineering. Appearing together indicates association on shared filings, not a proven working relationship.
Is 3 N 1 Construction Inc. a general contractor?▾
3 N 1 Construction Inc. 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
Firm directories by market