Hao Engineering is an engineering firm with 4 tracked San Francisco building-permit projects on record, with the latest filing in that record 47 days ago. Its filings (May 2025 to Jul 2026) are concentrated in Sunset/Parkside and Inner Sunset, 100% residential. A typical project in the record declares $100K–$208K. If you work at Hao Engineering, claim this page to add a description.
Filed 47 days ago
#671
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
4
projects
from 17 filings
1/16
active week
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$208K Outer Mission single-family renovation
Active 10 months ago · 2 filings · Hao Engineering: engineer
Revision to. ground floor: relocate furnace. remove one post. 2/f: update bathrooms layout. remove wall at stair area
GC named · Architect identified · Engineer identified · Specialty contractor identified
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$20K Inner Sunset single-family renovation
Grade CActive 1 month ago · Hao Engineering: engineer
Revision to existing - add 36 sf on the 2nd floor as office. some changes to windows/door sizes. move half bath. add backyard gazebo, few…
GC named · Specialty contractor identified
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Sunset/Parkside single-family renovation
Grade DActive 5 months ago · 4 filings · Hao Engineering: engineer
Revision to: relocate 1 full bathroom on the g/f. change tub to shower to the full bath at 2/f. no upgrade to electrical service panel
GC named · Specialty contractor identified
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4 project records for Hao Engineering: addresses, values, project teams
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Typical project$100K–$208K$157K typical9.2× the SF median ($17K)Last filed47 days agoInner Sunset · Jul 31, 2026Last 90 days1 active1 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Sunset/Parkside50%
Inner Sunset25%
Outer Mission25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Hao Engineering & Consulting | Architecture | 1 | |
| 1 | F C Company | General contractor | 1 | |
| 2 | Gao Wu Construction Inc | General contractor | 1 | |
| 3 | Sunny Ca International Inc | General contractor | 1 | |
| 4 | Coppergold Electric Inc | 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 relationships0 firmsFirms this one appears with on more than one project, out of 5 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Hao Engineering appear on?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Hao Engineering (May 2025 to Jul 2026). 1 had filing activity in the last 90 days.
Does Hao Engineering work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Hao Engineering'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 Hao Engineering work?▾
50% of Hao Engineering's tracked San Francisco projects are in Sunset/Parkside.
What is a typical Hao Engineering project worth?▾
The median declared value across the 4 San Francisco projects Hao Engineering has on record that state one is $157K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Hao Engineering?▾
Hao Engineering most frequently appears on the same San Francisco permit filings as F C Company, Gao Wu Construction Inc, Hao Engineering & Consulting. Appearing together indicates association on shared filings, not a proven working relationship.
Is Hao Engineering an engineering firm?▾
Hao Engineering 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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