CheckMyDesigner

J Mastro

Architect · Cm Architects

Public records

From the licensing board and the city of San Francisco.

The short answer

Licensed?
License activeArchitect C-35515First issued Jan 13, 2016, expires Jun 30, 2027.

Source: DCA License Search, retrieved Nov 5, 2026

Verify on DCA License Search

Any board discipline?
None found.

We searched the California Architects Board enforcement list on Nov 5, 2026.

Worked in San Francisco?
79 permits since 2018, 79 in the last 5 years. Latest filed Dec 7, 2022.
What kind of projects?
ADU 38 · Commercial or tenant improvement 13 · Home remodel 9
How long do their permits take?
Commercial or tenant improvement: 7 months. City typical for the same review: within 1 month.

Permits filed each year

San Francisco permits by the year they were filed. The last 5 years are in blue.

What are you planning?

Pick your kind of project to see their permits for it.

Permits
92 permits that name J Mastro, newest first, including 13 revisions or supplements that are not counted. Select a permit to see the full record.
FiledProjectOpen
Oct 6, 20251656 Sacramento St

Revision to pa #201911066648 to widen exterior slider doors facing backyard and remove washer dryer from scope to create a camera room.

Complete
Apr 3, 2024737 Pine St

Revision to permit 202012100754. remove from scope: the proposed partition walls, slab and steps within storage rooms.

Complete
Sep 19, 2023505 Garfield St

Rev to pa#2021-0929-9456; relocate proposed bathroom including minor changes to proposed elevations

Complete
Feb 9, 2023512 Grant Av #0

Revision to pa 2022-0420-2637 convert part of single proposed tenant space into an add'l (n) tenant shell space for fuure use as limited restaurant b occupancy and convert (e) non accessible toilet to accessible toilet. limited restaurant under separate permit

Cancelled
Dec 7, 20224356 California St

Accessible business entrance compliance. abe# 202205160835. barrier removal only.

Complete
Dec 7, 20221320 Ocean Av

To comply with compliant 202014812 - legalize build out of multiple b occupancy tenant spaces within the existing envelope, including chages to facade and stair at rear yard. mep deferred.

Filed
Oct 25, 2022351 Louisburg St

Add (1) adu at the 3/f - unit 351b (761 sf) & (1) junior adu located at the 1/f - unit 351a (500 sf), resulting in a change of occupancy. both within (e) building envelope of single family structure per ca state government code sect. 65852.2 & sect. 65852.22 to comply w/ complait #201937931.

Complete
May 11, 2022563 Webster St

Revision to pa# 201608104638. including removal of toilet room serving commercial space. provide plumbing fixture count for future tenant improvement at commercial.

Issued
Apr 27, 2022113 Newman St

Convert (e) covered patio at front of property into (n) bathroom and enlarge (e) bedroom. add (n) deck to remodeled bedroom

Complete
Apr 21, 2022278 Joost Av

Conversion of garage/storage to bedroom, bathroom, laundry.

Complete
Jan 31, 2022264 Missouri St

Interior remodel of unit 264 and 266 within envelope of the existing building. improvement of eero route at basement level. voluntary strengthning upper two levels by addings plywood shearwall.

Complete
Jan 25, 202277 Winfield St

(n) door & (n) window in place of (e) windows facing rear yard. infill of (e) foor to rear yard, addition of steps and area drawin in rear yard.

Cancelled
Nov 12, 20212044 Fillmore St

Revision to 202108267167: new lighting plan for t.i. on 2nd/f

Complete
Nov 9, 20211888 Clement St

Revision to bpa# 201910023383 to correct the (e) + (p) occupancy classifications and use classification stated in pts for pa# 201910023383 and to correct type of construction to type vb. create exit separation. add security gate.

Complete
Oct 21, 2021430 Baker St

Addition of three(3) adus per ordinance 162-16 at the rear accessory structure. this permit is traveling togather with bpa# 202110210953.

Filed
Oct 21, 2021430 Baker St

Addition of 4 accessory dwelling units per ordinance 162-16.the proposed adus are located within the ground floor of the main existing structure. this permit travels with bpa# 202110210954.

Filed
Oct 20, 2021411 Burnett Av

Expansion of deck @ 1/f & 2/f level

Complete
Oct 6, 2021540 Junipero Serra Bl

Legalization of an one story horizontal addition of an (e) unconditioned sunroom @ rear of building in conjunction w/planning application 2021003961var

Complete
Sep 29, 2021505 Garfield St

Single story addition within rear yard, to an existing single family dwelling. renovation of existing kitchen and deck on the roof of single story addition.

Complete
Sep 28, 20212044 Fillmore St

Rev to pa 202108267167. t.i. to (e) tenant space at 2/f. no change to legal non-conforming accessory massage not greater than 300sf established per mb020035 in april 2002 to (e) wellness station. no exterior changes.

Complete

Sources: DataSF i98e-djp9, 3pee-9qhc, retrieved Nov 5, 2026. Names on permits are matched to licenses by license number and name; unmatched records are not shown.

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