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Architect, San Francisco License C30029

Proto Inc.

The city has issued 13 of the 19 San Francisco building permits that name Proto Inc. since 2018. The work is mostly commercial, led by hotels, clinics, schools and other commercial. Their busiest neighborhoods are Mission, South of Market and Western Addition.

Also filed as
engineer
Issued by the city
13 of 19 filed since 2018
Rank for hotels, clinics, schools and other commercial
No. 34 of 334 by hotels, clinics, schools and other commercial issued
Overall rank
No. 475 of 1,543 architects and designers
Commercial share
95% last filing Jan 2024

What they work on

Every San Francisco building permit with Proto Inc. on the record since 2018, by project type. Most filed: 16 hotels, clinics, schools and other commercial, 2 retail and shops, 1 home additions.

Residential and commercial, by permits filed

5% residential
95% commercial
Permits by project type, filed and issued
  1. Hotels, clinics, schools and other commercial Commercial 12 of 16 issued 84% of filings.
  2. Retail and shops Commercial 0 of 2 issued 11% of filings.
  3. Home additions Residential 1 of 1 issued 5% 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
2023
8 permits filed
Latest filing
Jan 2024
68% of 19 issued
Permits filed per year: 2018: 4, 2019: 1, 2020: 0, 2021: 0, 2022: 5, 2023: 8, 2024: 1, 2025: 0, 2026: 0. The 2026 figure runs through October 20, 2026.

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: 13 of 19 permits filed

68%

All San Francisco project permits since 2018 in this data

93% issued

6 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. Proto Inc. has 4 of those across all project types; the citywide comparison is for hotels, clinics, schools and other commercial, their most filed type, where 1,155 of 8,497 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.

Median months from filing to issue for plan-review permits. San Francisco, hotels, clinics, schools and other commercial: 5.9 months. Middle half of city permits: 3.0 to 10.8 months.
44 other architects and designers ranked for hotels, clinics, schools and other commercial have a median for it Each circle is a firm's median for its plan-review permits for hotels, clinics, schools and other commercial. Dashed line: the median of all San Francisco plan-review permits for hotels, clinics, schools and other commercial, 5.9 months. Shaded: the middle half of those permits, 3.0 to 10.8 months.
0 3 6 9 12 15 18 21+ months D-Scheme Studio: 15.9 months Jackson Liles Architecture: 9.0 months Shatara Architecture: 20.3 months Costa Brown Architecture: 5.3 months Harvey Hacker Architects: 11.2 months Gary Gee Architects, Inc.: 12.2 months Hga: 4.5 months Mei Architects: 13.4 months C A Architects: 2.8 months Dnm Architect: 7.4 months Jensen Architects: 5.1 months Studio Bondy Architecture: 8.6 months Rmw: 21.9 months Arcus Architecture & Planning: 39.6 months Mark Cavagnero Associates: 12.4 months San Francisco Public Works: 16.8 months Dorman Assoc: 12.1 months Martinkovic Milford Architects: 5.2 months Tef Design: 4.1 months Cody Anderson Wasney Arch.: 4.7 months Leddy Maytum Stacy Archi: 2.6 months Page & Turnbull, Inc.: 3.6 months Tanner Hecht Architecture: 10.0 months Starkweatherbondy Arch Llp: 7.8 months Mbh Architects: 7.1 months Charles Hemminger Assoc.: 9.4 months Boulder Associates Architect: 3.0 months Treanorhl: 36.8 months Wong Logan Architects: 5.1 months Gelfand Partners Architects: 19.7 months Eaton Hall Architecture: 4.7 months M I Architects, Inc.: 14.9 months Locus Architecture Studio: 8.9 months Oculus: 12.3 months Sfmta: 4.8 months Ed2 International: 2.5 months Bureau Of Architecture: 5.1 months Brett Desmarais: 16.9 months Pfau Long Architecture: 6.5 months Kwan Design Architects: 3.5 months Michael Harris Architecture: 32.1 months Yao Chen Architecture Studio: 16.2 months Baukunst: 3.7 months Cac Architects: 11.2 months 0 3 6 9 12 15 18 21+ months D-Scheme Studio: 15.9 months Jackson Liles Architecture: 9.0 months Shatara Architecture: 20.3 months Costa Brown Architecture: 5.3 months Harvey Hacker Architects: 11.2 months Gary Gee Architects, Inc.: 12.2 months Hga: 4.5 months Mei Architects: 13.4 months C A Architects: 2.8 months Dnm Architect: 7.4 months Jensen Architects: 5.1 months Studio Bondy Architecture: 8.6 months Rmw: 21.9 months Arcus Architecture & Planning: 39.6 months Mark Cavagnero Associates: 12.4 months San Francisco Public Works: 16.8 months Dorman Assoc: 12.1 months Martinkovic Milford Architects: 5.2 months Tef Design: 4.1 months Cody Anderson Wasney Arch.: 4.7 months Leddy Maytum Stacy Archi: 2.6 months Page & Turnbull, Inc.: 3.6 months Tanner Hecht Architecture: 10.0 months Starkweatherbondy Arch Llp: 7.8 months Mbh Architects: 7.1 months Charles Hemminger Assoc.: 9.4 months Boulder Associates Architect: 3.0 months Treanorhl: 36.8 months Wong Logan Architects: 5.1 months Gelfand Partners Architects: 19.7 months Eaton Hall Architecture: 4.7 months M I Architects, Inc.: 14.9 months Locus Architecture Studio: 8.9 months Oculus: 12.3 months Sfmta: 4.8 months Ed2 International: 2.5 months Bureau Of Architecture: 5.1 months Brett Desmarais: 16.9 months Pfau Long Architecture: 6.5 months Kwan Design Architects: 3.5 months Michael Harris Architecture: 32.1 months Yao Chen Architecture Studio: 16.2 months Baukunst: 3.7 months Cac Architects: 11.2 months

4 firms with medians over 21 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 hotels, clinics, schools and other commercial alone.

  1. 473 Jimenez & Associates 13
  2. 474 Bach Architecture 13
  3. 475 Proto Inc. 13
  4. 476 Vincent Labiano Abello 13
  5. 477 Kahn Design Assoc. 13

All permits issued, 1,543 architects and designers Full ranking

  1. 32 Kohan Group Inc 12
  2. 33 Tanner Hecht Architecture 12
  3. 34 Proto Inc. 12
  4. 35 Hammel, Green & Abrahamson 11
  5. 36 Amz Engineering Inc 11

Hotels, clinics, schools and other commercial issued, 334 architects and designers Hotels, clinics, schools and other commercial ranking

Where they work

The neighborhoods where Proto Inc. files the most permits, and how many architects and designers count each one among their top 4 neighborhoods.

  1. 01 Mission 381 architects and designers count Mission among their busiest neighborhoods
  2. 02 South of Market 216 architects and designers count South of Market among their busiest neighborhoods
  3. 03 Western Addition 74 architects and designers count Western Addition among their busiest neighborhoods
  4. 04 Castro/Upper Market 206 architects and designers count Castro/Upper Market among their busiest neighborhoods

Questions for the first call

  1. Which of your recent San Francisco permits are closest to my project in type, size and neighborhood, and can I see the permit numbers?
  2. How long did those permits take from filing to issue, and what did plan check send back?
  3. Who on your team draws the set, who stamps it, and who answers the city's comments?

Other architects and designers for hotels, clinics, schools and other commercial

Firms ranked near Proto Inc. by permits issued for hotels, clinics, schools and other commercial.

  1. 31 Page & Turnbull, Inc. 12 hotels, clinics, schools and other commercial issued · 3.6 mo median for hotels, clinics, schools and other commercial
  2. 32 Kohan Group Inc 12 hotels, clinics, schools and other commercial issued
  3. 33 Tanner Hecht Architecture 12 hotels, clinics, schools and other commercial issued · 10.0 mo median for hotels, clinics, schools and other commercial
  4. 36 Amz Engineering Inc 11 hotels, clinics, schools and other commercial issued
  5. 37 Starkweatherbondy Arch Llp 11 hotels, clinics, schools and other commercial issued · 7.8 mo median for hotels, clinics, schools and other commercial
  6. 38 Interior Architects 10 hotels, clinics, schools and other commercial issued

See all 334 architects and designers ranked for hotels, clinics, schools and other commercial

Sheet
A-475 No. 475 of 1,543
Drawing
Permit record, Proto Inc.
Architect, San Francisco
License
C30029 check with CAB
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 Proto Inc. has not paid to be listed. Project addresses are never shown.

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