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Erwin J O'toole is an engineering firm with 6 tracked San Francisco building-permit projects on record, with the latest filing in that record 42 days ago. Its filings (Mar 2025 to Aug 2026) are concentrated in Castro/Upper Market and Mission, 100% residential. A typical project in the record declares $23K–$280K. If you work at Erwin J O'toole, claim this page to add a description.
Filed 42 days ago
#435
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
6
projects
from 14 filings
2/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$370K Sunset/Parkside renovation
Grade BActive 1 month ago · Erwin J O'toole: engineer
Rear horizontal addition and interior remodel. 1st fl. add a guest room, a full bathroom, a family room with wet bar. 2nd fl. remodel (e)…
GC named · Architect identified
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$20K Mission renovation
Grade DActive 2 months ago · Erwin J O'toole: engineer
Install a retractable shade structure with fire-retardant fabric including all required mounting hardware and attachements in the second…
GC named · Design firm identified · 2 specialty contractors identified
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$500K Nob Hill multifamily renovation
Last active Mar 2025 · Erwin J O'toole: engineer
Install temporary underpinning at locations shown on sh2.0 to allow excavation for new development at 1101-1123 sutter street. reference…
GC named · 2 specialty contractors identified
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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.
6 project records for Erwin J O'toole: addresses, values, project teams
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Typical project$23K–$280K$57K typical3.4× the SF median ($17K)Last filed42 days agoSunset/Parkside · Aug 5, 2026Last 90 days2 active2 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Aug 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Castro/Upper Market20%
Mission20%
Mission Bay20%
Nob Hill20%
Outer Richmond20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Erwin J Otoole PE | Architecture | 1 | |
| 2 | Jason Chan | Architecture | 1 | |
| 1 | O'toole Construction Inc. | General contractor | 2 | |
| 2 | JLQ Construction Inc | General contractor | 1 | |
| 3 | Neeve Engineering Inc | General contractor | 1 | |
| 4 | Planart Construction Corp | General contractor | 1 | |
| 5 | San Francisco Power | Electrical 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 licenseNot connectedArchitects are licensed by the California Architects Board and engineers by BPELSG. Neither register is part of the San Francisco permit record, and we do not yet read them.
Repeat working relationships1 firmFirms this one appears with on more than one project, out of 7 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Erwin J O'toole appear on?▾
PermitPipeline tracks 6 San Francisco building-permit projects for Erwin J O'toole (Mar 2025 to Aug 2026). 2 had filing activity in the last 90 days.
Does Erwin J O'toole work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Erwin J O'toole'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 Erwin J O'toole work?▾
20% of Erwin J O'toole's tracked San Francisco projects are in Castro/Upper Market.
What is a typical Erwin J O'toole project worth?▾
The median declared value across the 6 San Francisco projects Erwin J O'toole has on record that state one is $57K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Erwin J O'toole?▾
Erwin J O'toole most frequently appears on the same San Francisco permit filings as O'toole Construction Inc., Erwin J Otoole PE, Jason Chan. Appearing together indicates association on shared filings, not a proven working relationship.
Is Erwin J O'toole an engineering firm?▾
Erwin J O'toole is listed as an engineering firm 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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