Engineer, Sf License 31122
Mazzetti
The city has issued 11 of the 12 San Francisco building permits that name Mazzetti since 2018. The work is mostly commercial, led by offices. Their busiest neighborhoods are Tenderloin, Financial District/South Beach and Bernal Heights.
- Also filed as
- architect, designer
- Issued by the city
- 11 of 12 filed since 2018
- Rank for offices
- No. 100 of 375 by offices issued
- Overall rank
- No. 379 of 1,146 engineers
- Commercial share
- 100% last filing Aug 2024
What they work on
Every San Francisco building permit with Mazzetti on the record since 2018, by project type. Most filed: 9 offices, 3 hotels, clinics, schools and other commercial.
Residential and commercial, by permits filed
- Offices Commercial 8 of 9 issued 75% of filings.
- Hotels, clinics, schools and other commercial Commercial 3 of 3 issued 25% of filings.
Permits over time
Permits filed each year, drawn as a street with one building per year, and how many of all their permits the city has issued.
- Busiest year
- 2018
- 7 permits filed
- Latest filing
- Aug 2024
- 92% of 12 issued
One building per year, its height the permits filed. Each floor line marks 1 permit; the 2026 building is dashed because it counts permits filed through October 20, 2026.
Issued by the city: 11 of 12 permits filed
All San Francisco project permits since 2018 in this data
1 not issued as of October 20, 2026. Source: SF Department of Building Inspection permits via DataSF.
How fast their permits come through
Filing to issue for permits that went through plan review. Mazzetti has 1 of those across all project types; the citywide comparison is for offices, their most filed type, where 1,360 of 26,216 permits went through plan review and the rest were approved over the counter.
No median yet: fewer than 3 issued plan-review permits with usable dates.
2 firms with medians over 12 months are drawn at the right edge.
Where they rank
Ranked by permits the city has issued since 2018, first across every project type, then for offices alone.
- 377 Coffman Engineers 11
- 378 Kpw Structural Engineers, Inc 11
- 379 Mazzetti 11
- 380 Monarch Engineering 11
- 381 Paul O'neill 11
All permits issued, 1,146 engineers Full ranking
- 98 Diamond Engineering Services 8
- 99 Turley & Associates 8
- 100 Mazzetti 8
- 101 Forell 8
- 102 Douglas Forslund 8
Offices issued, 375 engineers
Where they work
The neighborhoods where Mazzetti files the most permits, and how many engineers count each one among their top 4 neighborhoods.
- 01 Tenderloin 107 engineers count Tenderloin among their busiest neighborhoods
- 02 Financial District/South Beach 386 engineers count Financial District/South Beach among their busiest neighborhoods
- 03 Bernal Heights 136 engineers count Bernal Heights among their busiest neighborhoods
Questions for the first call
- Which of your recent San Francisco permits are closest to my project in type, size and neighborhood, and can I see the permit numbers?
- How long did those permits take from filing to issue, and what did plan check send back?
- Who on your team draws the set, who stamps it, and who answers the city's comments?
Other engineers for offices
Firms ranked near Mazzetti by permits issued for offices.
- Sheet
- S-379 No. 379 of 1,146
- Drawing
- Permit record, Mazzetti
- Engineer, Sf
- License
- 31122 check with BPELSG
- Source
- San Francisco DBI building permits, since 2018
- Data as of
- Oct 2026
- Scale
- Not to scale
Built only from public San Francisco Department of Building Inspection records (permits, permit contacts), updated 2026-10-20. It is not a review or an endorsement, and Mazzetti has not paid to be listed. Project addresses are never shown.
Is this your firm? Claim it or send a correction.