Block 12 Construction
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#421
by SF filing activity
among SF general contractors, last 90 days
23
projects tracked
Apr 2025 to Jul 2026
2/16
active weeks
weeks with a filing (last 16)
1 of the 23 Block 12 Construction projects filed new permits in the last 30 days.
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$40K Hayes Valley renovation
Filed 27 days ago · Block 12 Construction: GC
505: in kind bathroom remodel. no wall changes, new electrical plugs and switches, new plumbing and fixtures and shower pan
GC named
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Russian Hill renovation
Filed 6 months ago · Block 12 Construction: GC
Revision to: kitchen and bath remodel. removal of interior partition walls non structural
GC named · Architect identified
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$150K Sunset/Parkside renovation
Filed 11 months ago · Block 12 Construction: GC
In kind kitchen and (2) bath remodel (n) plumbing and electrical fixtures, appliances. no structrual or wall changes
GC named
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20 more
Block 12 Construction 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.
23 project records for Block 12 Construction: addresses, values, project teams
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Middle 50% of declared values: $43K–$82K (median $82K)
Most recent filing: Hayes Valley · Jul 10, 2026
2 active · 2 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
2
active projects (last 90d)
2
newly observed (last 90d)
Jul 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Nob Hill60%
Russian Hill20%
Mission10%
Haight Ashbury5%
Hayes Valley5%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Lofrano Architecture | Architecture | 4 | |
| 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 Block 12 Construction filed?▾
PermitPipeline tracks 23 San Francisco building-permit projects for Block 12 Construction (Apr 2025 to Jul 2026). 2 had filing activity in the last 90 days.
Does Block 12 Construction work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Block 12 Construction'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 Block 12 Construction work?▾
52% of Block 12 Construction's tracked San Francisco projects are in Nob Hill.
What is a typical Block 12 Construction project worth?▾
Across the 23 tracked projects with a declared value, Block 12 Construction averages $65K per project (declared value on the permit filing, not contract value).
Which firms does Block 12 Construction work with most often?▾
Block 12 Construction most frequently appears on the same San Francisco permit filings as Lofrano Architecture. Appearing together indicates association on shared filings, not a proven working relationship.
Is Block 12 Construction a general contractor?▾
Block 12 Construction 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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