21st Century Home Improvt is a general contractor with 10 tracked San Francisco building-permit projects on record, with the latest filing in that record 85 days ago. Its filings (Mar 2025 to Jun 2026) are concentrated in Sunset/Parkside and Bayview Hunters Point, 100% residential. A typical project in the record declares $5K–$20K. If you work at 21st Century Home Improvt, claim this page to add a description.
Filed 85 days ago
#984
by SF filing activity
among SF general contractors, 90 days to Aug 23, 2026
10
projects
from 10 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
$12K Bayview Hunters Point single-family renovation
Grade DActive 2 months ago · 21st Century Home Improvt: GC
Replace bathroom tiles
GC named
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$3K Seacliff single-family renovation
Last active Apr 2025 · 21st Century Home Improvt: GC
Revision to vault ceilings at living room
GC named · Architect identified · Engineer identified
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Noe Valley multifamily renovation
Active 7 months ago · 21st Century Home Improvt: GC
To obtain final inspection for work performed under. all work is complete
GC named
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7 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.
10 project records for 21st Century Home Improvt: addresses, values, project teams
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Typical project$5K–$20K$12K typical69% of the SF median ($17K)Last filed85 days agoBayview Hunters Point · Jun 25, 2026Last 90 days1 active1 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jun 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Sunset/Parkside50%
Bayview Hunters Point13%
Bernal Heights13%
Lone Mountain/USF12%
Noe Valley12%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Lawrence Liao STR. Eng | Architecture | 1 | |
| None on shared filings. | ||||
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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 #682929As filed on 1 permit
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 1 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does 21st Century Home Improvt appear on?▾
PermitPipeline tracks 10 San Francisco building-permit projects for 21st Century Home Improvt (Mar 2025 to Jun 2026). 1 had filing activity in the last 90 days.
Does 21st Century Home Improvt work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of 21st Century Home Improvt'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 21st Century Home Improvt work?▾
50% of 21st Century Home Improvt's tracked San Francisco projects are in Sunset/Parkside.
What is a typical 21st Century Home Improvt project worth?▾
The median declared value across the 10 San Francisco projects 21st Century Home Improvt has on record that state one is $12K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as 21st Century Home Improvt?▾
21st Century Home Improvt most frequently appears on the same San Francisco permit filings as Lawrence Liao STR. Eng. Appearing together indicates association on shared filings, not a proven working relationship.
Is 21st Century Home Improvt a general contractor?▾
21st Century Home Improvt 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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