Double D Engineeering
Architecture firm · San Francisco permit activity
Architecture firm active in San Francisco construction, tracked from public building-permit filings.
#65
by SF filing activity
among SF architects & engineers, last 90 days
32
projects tracked
Jan 2025 to Jul 2026
6/16
active weeks
weeks with a filing (last 16)
8 of the 64 Double D Engineeering projects filed new permits in the last 30 days.
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$60K Mission renovation
Filed 2 months ago · 2 filings · Double D Engineeering: architect
Revision to, install new stair guardrail in existing location
GC named · Architect identified · Engineer identified
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$650K Castro/Upper Market renovation
Filed 18 days 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 · 1 other firm identified
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$100K West of Twin Peaks renovation
Filed 7 months ago · 3 filings · Double D Engineeering: architect
Revision to include structrual details
GC named · Engineer identified
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61 more
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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.
32 project records for Double D Engineeering: addresses, values, project teams
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Middle 50% of declared values: $12K–$100K (median $43K)
Most recent filing: Castro/Upper Market · Jul 18, 2026
7 active · 5 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
7
active projects (last 90d)
5
newly observed (last 90d)
Jul 2026
peak month
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 | Huang Ibosh Architecture | Architecture | 1 | |
| 4 | Peter Petruzzi Architect | Architecture | 1 | |
| 5 | Step.3.Studio | 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 | Doyle Developments | General contractor | 1 |
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 Double D Engineeering filed?▾
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?▾
19% of Double D Engineeering's tracked San Francisco projects are in Outer Richmond.
What is a typical Double D Engineeering project worth?▾
Across the 38 tracked projects with a declared value, Double D Engineeering averages $80K per project (declared value on the permit filing, not contract value).
Which firms does Double D Engineeering work with most often?▾
Double D Engineeering most frequently appears on the same San Francisco permit filings as Double -D Engineering, Amber - Tru Construction Inc., The Toboni Group. 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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