Double D Engineeering
Architecture firm · San Francisco permit activity
Architecture firm active in San Francisco construction, tracked from public building-permit filings.
#65
by NYC filing activity
among NYC architects & engineers, last 90 days
32
project records
Jan 2025 to Jul 2026
6/16
active weeks
weeks with a filing (last 16)
32 projects
Scopes, declared values and this firm's role on each one
See 32 projects involving Double D Engineeering
Recent projects involving this firm
Castro/Upper Market
Vert add'n and renovation.maintain/mod (e) gas hydronic heating and gas systems.mep…
$650K
Castro/Upper Market
Vert add'n and renovation.maintain/mod (e) gas hydronic heating and gas systems.mep…
$650K
Noe Valley
Revision 202604159485- to abate nov 202659113- to add horizontal supports to (e) vertifcal…
$63K
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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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
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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 borough
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., 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 DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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