Bay Air Systems, Inc is a general contractor with 11 tracked San Francisco building-permit projects on record, with the latest filing in that record 33 days ago. Its filings (Mar 2025 to Sep 2026) are concentrated in Financial District/South Beach and Hayes Valley, 100% commercial. A typical project in the record declares $27K–$384K. If you work at Bay Air Systems, Inc, claim this page to add a description.
Filed 33 days ago
#257
by SF filing activity
among SF general contractors, 90 days to Oct 4, 2026
11
projects
from 47 filings
5/16
active weeks
weeks with a filing (16 weeks to Oct 4, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$576K Financial District/South Beach renovation
Grade AActive 16 days ago · 2 filings · Bay Air Systems: GC
Mechanical-install new low pressure duct & air distribution to meet new layout. install (3) new terminal units to meet new zoing plan…
GC named · Architect identified · Design firm identified · 4 engineers identified
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$1.6M Mission commercial renovation
Grade BActive 2 months ago · 4 filings · Bay Air Systems: GC
Suite 100 and 210: deferred electrical…
GC named · Architect identified · Design firm identified · 3 engineers identified
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$27K Hayes Valley commercial renovation
Grade DActive 5 months ago · Bay Air Systems: GC
Work category: 2pa; (1) gas line for furnace
GC named · 2 specialty contractors identified
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8 more
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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.
11 project records for Bay Air Systems, Inc: addresses, values, project teams
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Typical project$27K–$384K$175K typical10× the SF median ($17K)Last filed33 days agoFinancial District/South Beach · Sep 4, 2026Last 90 days4 active2 newly filed
Filing activity · 16 weeks to Oct 4, 2026 · peak Jul 2026
JUN
JUL
AUG
SEP
Project mix · by use
Commercial100%
Geography · by neighborhood
Financial District/South Beach46%
Hayes Valley18%
Mission18%
Haight Ashbury9%
Marina9%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | California Electric Design | Engineering | 5 | |
| 2 | Pragmatic | Engineering | 3 | |
| 3 | RMW | Architecture | 2 | |
| 4 | Sargenti Architects | Architecture | 1 | |
| 5 | Chiawang Structural Eng | Engineering | 1 | |
| 1 | Metcon Ti, Inc | General contractor | 5 | |
| 2 | Diablo Electric Inc. | General contractor | 2 | |
| 3 | Buildtech West | General contractor | 1 | |
| 4 | C B F Inc | General contractor | 1 | |
| 5 | City Mechanical Inc | General contractor | 1 |
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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 #450929As filed on 20 permits
Repeat working relationships5 firmsFirms this one appears with on more than one project, out of 24 in total.
Permit speed16 days7 days shorter than the SF median
based on 16 firm filings vs 5,089 SF filings
based on 16 firm filings vs 5,089 SF filings
Frequently asked questions
How many SF projects does Bay Air Systems, Inc appear on?▾
PermitPipeline tracks 11 San Francisco building-permit projects for Bay Air Systems, Inc (Mar 2025 to Sep 2026). 4 had filing activity in the last 90 days.
Does Bay Air Systems, Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 100% of Bay Air Systems, Inc's projects are commercial and 0% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Bay Air Systems, Inc work?▾
46% of Bay Air Systems, Inc's tracked San Francisco projects are in Financial District/South Beach.
What is a typical Bay Air Systems, Inc project worth?▾
The median declared value across the 11 San Francisco projects Bay Air Systems, Inc has on record that state one is $175K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Bay Air Systems, Inc?▾
Bay Air Systems, Inc most frequently appears on the same San Francisco permit filings as California Electric Design, Metcon Ti, Inc, Pragmatic. Appearing together indicates association on shared filings, not a proven working relationship.
Is Bay Air Systems, Inc a general contractor?▾
Bay Air Systems, 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 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 Oct 4, 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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