21st Century Home Improvt
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#799
by SF filing activity
among SF general contractors, last 90 days
10
projects tracked
Mar 2025 to Jun 2026
1/16
active weeks
weeks with a filing (last 16)
Every 21st Century Home Improvt project: scopes, declared values, teams and filing history.
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$12K Bayview Hunters Point renovation
Grade DFiled 1 month ago · 21st Century Home Improvt: GC
Replace bathroom tiles
GC named
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$3K Seacliff renovation
Filed 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 renovation
Grade DFiled 5 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
21st Century Home Improvt projects with project intelligence
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 and contact details 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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Middle 50% of declared values: $5K–$20K (median $12K)
Most recent filing: Bayview Hunters Point · Jun 25, 2026
1 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
1
active projects (last 90d)
1
newly observed (last 90d)
Jun 2026
peak month
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. | ||||
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 21st Century Home Improvt filed?▾
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?▾
40% of 21st Century Home Improvt's tracked San Francisco projects are in Sunset/Parkside.
What is a typical 21st Century Home Improvt project worth?▾
Across the 10 tracked projects with a declared value, 21st Century Home Improvt averages $12K per project (declared value on the permit filing, not contract value).
Which firms does 21st Century Home Improvt work with most often?▾
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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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