Double D Engineeering is an architecture firm with 32 tracked San Francisco building-permit projects on record, with the latest filing in that record 26 days ago. Its filings (Jan 2025 to Jul 2026) are concentrated in Outer Richmond and West of Twin Peaks, 97% residential. A typical project in the record declares $12K–$100K. If you work at Double D Engineeering, claim this page to add a description.
Filed 26 days ago
#82
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
32
projects
from 69 filings
8/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
$80K Hayes Valley multifamily renovation
Grade BActive 1 month ago · Double D Engineeering: architect
Kitchen, living room, bathroom, and bedroom
GC named · Architect identified · Specialty contractor identified · 1 anticipated category not yet filed
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$650K Castro/Upper Market single-family renovation
Grade AActive 1 month ago · Double D Engineeering: architect
Vert add'n and renovation.maintain/mod (e) gas hydronic heating and gas systems.mep deferred.1/f: new bathroom,enlarge laundry rm and…
GC named · 2 Design firms identified · 2 specialty contractors identified · 1 anticipated category not yet filed
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Mission multifamily renovation
Grade DActive 4 months ago · 2 filings · Double D Engineeering: architect
Revision to, install new stair guardrail in existing location
GC named · Architect identified · Engineer identified · 3 specialty contractors identified
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owner names and mailing addresses, and full filing histories are part of the paid product.
32 project records for Double D Engineeering: addresses, values, project teams
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Typical project$12K–$100K$43K typical2.5× the SF median ($17K)Last filed26 days agoNoe Valley · Aug 21, 2026Last 90 days7 active5 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026
MAY
JUN
JUL
AUG
Project mix · by use
Commercial3%
Residential97%
Geography · by neighborhood
Outer Richmond33%
West of Twin Peaks22%
Mission17%
Pacific Heights17%
Marina11%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Double -D Engineering | Engineering | 3 | |
| 2 | Liebes Architect | Architecture | 2 | |
| 3 | Aleck Wilson Architects | Architecture | 1 | |
| 4 | Architectural Studio | Architecture | 1 | |
| 5 | Beamable Engineering Inc | Architecture | 1 | |
| 1 | Amber - Tru Construction Inc. | General contractor | 3 | |
| 2 | Gil Construction & Assoc Inc. | General contractor | 2 | |
| 3 | Hon's Construction Inc. | General contractor | 2 | |
| 4 | The Toboni Group | General contractor | 2 | |
| 5 | CJ Plumbing | General contractor | 2 |
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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 licenseCalifornia architect #S-3928On 8 of this firm's filings. Architect licenses are held by individuals, not by firms.
Repeat working relationships7 firmsFirms this one appears with on more than one project, out of 47 in total.
Permit speed3 days30 days shorter than the SF median
based on 16 firm filings vs 4,334 SF filings
based on 16 firm filings vs 4,334 SF filings
Frequently asked questions
How many SF projects does Double D Engineeering appear on?▾
PermitPipeline tracks 32 San Francisco building-permit projects for Double D Engineeering (Jan 2025 to Jul 2026). 7 had filing activity in the last 90 days.
Does Double D Engineeering work on commercial or residential projects?▾
Across its tracked San Francisco filings, 3% of Double D Engineeering's projects are commercial and 97% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Double D Engineeering work?▾
33% of Double D Engineeering's tracked San Francisco projects are in Outer Richmond.
What is a typical Double D Engineeering project worth?▾
The median declared value across the 32 San Francisco projects Double D Engineeering has on record that state one is $43K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Double D Engineeering?▾
Double D Engineeering most frequently appears on the same San Francisco permit filings as Amber - Tru Construction Inc., Double -D Engineering, Gil Construction & Assoc Inc.. Appearing together indicates association on shared filings, not a proven working relationship.
Is Double D Engineeering an architecture firm?▾
Double D Engineeering is listed as an architecture 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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