San Francisco directory · Ranked by permits issued

Home addition architects in San Francisco

269 architects and designers have 2 or more home addition permits issued in San Francisco since 2018. We rank them by how many the city issued with their name on the record, and show how long their plan-review permits took.

Updated October 20, 2026 · Nobody pays to be listed or ranked

Architects ranked: 269
Permits of this type filed since 2018: 3,030
Citywide median with plan review: 14.2 mo

Where is the project?

Pick a neighborhood to see who works there most. Bars count the architects for whom it is a top neighborhood.

All 38 neighborhoods in the list filter

Sheet: A-102
Drawing: Home addition architects, San Francisco
Source: SF DBI building permits since 2018
Date: Oct 2026
Scale: 2+ issued to be listed
Drawn by: Bay Area Architect

269 listed, most home addition permits issued first

No. 1

Their permits by type, as a plan. Hatched: additions.
27 issued
Sutro Architects

Architect · License C30702 · San Francisco

Additions issued

27 of 33

Share of their work

14%

Median to issue

14.9 mo

This firm
14.9 mo
Citywide
14.2 mo

222 permits of all types issued since 2018. Mostly home remodels 65% · home additions 14% · apartments and multifamily 7%. Last filed Oct 2026.
Most active in
- Pacific Heights
- Presidio Heights
- Marina
- Seacliff
2018 Permits filed per year 2026

Open profile
No. 2

Their permits by type, as a plan. Hatched: additions.
25 issued
Xie Associates

Architect · License C32963 · San Francisco

Additions issued

25 of 29

Share of their work

4%

Median to issue

10.4 mo

This firm
10.4 mo
Citywide
14.2 mo

628 permits of all types issued since 2018. Mostly home remodels 60% · apartments and multifamily 18% · ADUs 10%. Last filed Oct 2026.
Most active in
- Sunset/Parkside
- Outer Richmond
- West of Twin Peaks
- Excelsior
2018 Permits filed per year 2026

Open profile
No. 3

Their permits by type, as a plan. Hatched: additions.
23 issued
Troy Kashanipour

Architect · License C27646 · San Francisco

Additions issued

23 of 24

Share of their work

11%

Median to issue

15.2 mo

This firm
15.2 mo
Citywide
14.2 mo

201 permits of all types issued since 2018. Mostly home remodels 59% · apartments and multifamily 18% · home additions 11%. Last filed Oct 2026.
Most active in
- Noe Valley
- Mission
- Bernal Heights
- West of Twin Peaks
2018 Permits filed per year 2026

Open profile

Ranked by home addition building permits issued in San Francisco since 2018 with the firm named on the permit record; firms need 2 or more to be listed. The line under each name shows the firm's two largest project types as a share of its permits. Median time covers the firm's home addition plan-review permits only and needs 3 or more issued with dates; the blue dimension line under it is drawn to scale, and the small dark mark on it is the citywide median of 14.2 months for home addition permits. Neighborhoods are where it filed the most permits of any type. A listing is not an endorsement, and nobody pays to be ranked. Some firms appear twice when the city recorded them under two names.

How to shortlist

1Pick two or three with issued permits for work like yours, in or near your neighborhood.
2Ask each for the permit numbers of recent projects and look them up on the DBI permit search.
3Check the license before you sign. Profiles with a license number link to the state lookup.
4 Compare their median time for home addition permits with the citywide 14.2 months for home addition permits that needed plan review, and ask what made the slow ones slow.

What the numbers mean

Issued counts home addition permits the city issued with this firm on the record. "Of" is how many were filed.

Median to issue is months from filing to issue across a firm's home addition permits that went through plan review, shown for 107 of 269 with 3 or more.

Full method

Source and notes

Source: San Francisco Department of Building Inspection building permits and permit contacts on DataSF. We include new-construction, plan-review and over-the-counter alteration permits filed since 2018, sorted into project types from the building's use and the permit description. Owner-builders and other private individuals are left out, and we never publish project addresses. Is your firm listed wrong? Send a correction.

Common questions

Which architects have the most home addition permits in San Francisco?

On city permit records since 2018, Sutro Architects is named on the most issued home addition permits among architects and designers (27 issued of 33 filed).

How long does a home addition permit take in San Francisco?

Of 3,030 home addition permits filed since 2018, 1,292 were over-the-counter permits without full plan review. For those that went through plan review, the median took 14.2 months from filing to issue, and the middle half took 8.6 to 21.4 months.

How is this list ranked?

By the number of home addition building permits issued in San Francisco since 2018 where the firm or person is named on the permit record in the city's public contacts data. We sort permits into project types from the building's use and the permit description. Nobody pays to be listed or ranked. Sponsored placements, when they exist, are labeled and shown apart from the ranking.

Sutro Architects

Xie Associates

Troy Kashanipour

Common questions