Architect, San Francisco License C34835
Claudio Martonffy Design
The city has issued 8 of the 8 San Francisco building permits that name Claudio Martonffy Design since 2018. The work is mostly residential, led by home remodels. Their busiest neighborhoods are Castro/Upper Market, Tenderloin and Nob Hill.
- Issued by the city
- 8 of 8 filed since 2018
- Rank for home remodels
- No. 497 of 869 by home remodels issued
- Overall rank
- No. 707 of 1,543 architects and designers
- Commercial share
- 25% last filing Jan 2025
What they work on
Every San Francisco building permit with Claudio Martonffy Design on the record since 2018, by project type. Most filed: 4 home remodels, 2 apartments and multifamily, 2 offices.
Residential and commercial, by permits filed
- Home remodels Residential 4 of 4 issued 50% of filings.
- Apartments and multifamily Residential 2 of 2 issued 25% of filings.
- Offices Commercial 2 of 2 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
- 2022
- 3 permits filed
- Latest filing
- Jan 2025
- 100% of 8 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: 8 of 8 permits filed
All San Francisco project permits since 2018 in this data
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. Claudio Martonffy Design has 0 of those across all project types; the citywide comparison is for home remodels, their most filed type, where 3,361 of 93,498 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.
12 firms with medians over 18 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 home remodels alone.
- 705 Atelier Ks 8
- 706 Brayton Hughes Design Studios 8
- 707 Claudio Martonffy Design 8
- 708 Collaborate Design Group 8
- 709 Deborah Lee Sylva 8
All permits issued, 1,543 architects and designers Full ranking
- 495 Ann Wimsatt 4
- 496 Brayton Hughes Design Studios 4
- 497 Claudio Martonffy Design 4
- 498 Collaborate Design Group 4
- 499 Kuth/Ranieri Architects 4
Home remodels issued, 869 architects and designers Home remodels ranking
Where they work
The neighborhoods where Claudio Martonffy Design files the most permits, and how many architects and designers count each one among their top 4 neighborhoods.
- 01 Castro/Upper Market 206 architects and designers count Castro/Upper Market among their busiest neighborhoods
- 02 Tenderloin 112 architects and designers count Tenderloin among their busiest neighborhoods
- 03 Nob Hill 109 architects and designers count Nob Hill among their busiest neighborhoods
- 04 Western Addition 74 architects and designers count Western Addition 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 architects and designers for home remodels
Firms ranked near Claudio Martonffy Design by permits issued for home remodels.
- 491 Sf Plans & Permits 4 home remodels issued
- 492 Page & Turnboll 4 home remodels issued
- 494 Freeform 4 home remodels issued
- 498 Collaborate Design Group 4 home remodels issued
- 500 Ian Murray Design 4 home remodels issued
- 501 Gtl Architects 4 home remodels issued
See all 869 architects and designers ranked for home remodels
- Sheet
- A-707 No. 707 of 1,543
- Drawing
- Permit record, Claudio Martonffy Design
- Architect, San Francisco
- License
- C34835 check with CAB
- 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 Claudio Martonffy Design has not paid to be listed. Project addresses are never shown.
Is this your firm? Claim it or send a correction.