Block 12 Construction
General contractor · San Francisco permit activity
General contractor active in San Francisco construction, tracked from public building-permit filings.
#421
by NYC filing activity
among NYC general contractors, last 90 days
23
project records
Apr 2025 to Jul 2026
2/16
active weeks
weeks with a filing (last 16)
23 projects
Scopes, declared values and this firm's role on each one
See 23 projects involving Block 12 Construction
Recent projects involving this firm
Hayes Valley
#505: in kind bathroom remodel. no wall changes, new electrical plugs and switches, new…
$40K
Pacific Heights
Exterior south wall on laguna st dryrot and stucco repair (approx. 400 sf)
$43K
Mission Bay
Unit #1305, in-kind interior remodel. new interior finishes, new kitchen counter, wd laundry…
$50K
Neighbourhood, filing date, scope and declared value are shown here. Exact addresses, full filing histories and project teams are part of the paid product.
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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
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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 borough
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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