David Zenor Heinzerling
- Listed as
- engineer
- On San Francisco permits
- Oct 2021 to Sep 2026
15 permits since 2000 (engineer on 15 permits): 10 completed, 4 in progress, 1 never finaled.
This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Sep 4, 2026 | In progress issued Sep 2026 | 600 Montgomery St | Truebeck Construction | demolition of some (e) doors, construction of new full-height partitions, doors, millwork, finishes, associated electrical power/lightning distribution, associated system distribution, associated plumbing, associated life-safety system changes.Details
demolition of some (e) doors, construction of new full-height partitions, doors, millwork, finishes, associated electrical power/lightning distribution, associated system distribution, associated plumbing, associated life-safety system changes. | $1,500,000 |
| Sep 3, 2026 | In progress issued Sep 2026 | 600 Montgomery St | Principal Builders Inc. | 43rd fl: soft demo of interior, replacement with new non bearing partitions, new lighting, new millwork and appliances, partial replacement of mech, electrical, plumbing, districtDetails
43rd fl: soft demo of interior, replacement with new non bearing partitions, new lighting, new millwork and appliances, partial replacement of mech, electrical, plumbing, district | $624,369 |
| Dec 15, 2025 | In progress issued Jan 2026 | 600 Montgomery St | Truebeck Construction | 39/f: interior alteration of new tenant fitout to include board room, storage rooms, enclosed and open offices, break room and all gender restrooms, with associated mep work, and selected demolition work.Details
39/f: interior alteration of new tenant fitout to include board room, storage rooms, enclosed and open offices, break room and all gender restrooms, with associated mep work, and selected demolition work. | $3,500,000 |
| Dec 12, 2025 | In progress issued Feb 2026 | 555 Market St | Bcci Construction Company | 1/fl- (n) amenity bar/restaurant space, basketball court, lounge area, includes (n) conference rooms, countertop bar and island, seating, restrooms, finishes, and lighting throughout. 2/fl (n) lighting, ceilings, and finishes throughout. (n) pickleball court, fitness area, fitness, classroom, newDetails
1/fl- (n) amenity bar/restaurant space, basketball court, lounge area, includes (n) conference rooms, countertop bar and island, seating, restrooms, finishes, and lighting throughout. 2/fl (n) lighting, ceilings, and finishes throughout. (n) pickleball court, fitness area, fitness, classroom, new | $8,361,781 |
| Sep 12, 2025 | Completed final sign-off Feb 2026 | 600 Montgomery St | Hathaway Dinwiddie Co. | 22nd fl - revision to pa202504114245 for relocation of fire smoke dampersDetails
22nd fl - revision to pa202504114245 for relocation of fire smoke dampers | |
| Aug 20, 2025 | Completed final sign-off Aug 2026 | 600 Montgomery St | Hathaway Dinwiddie Co. | 21st fl- interior demolition subject to and interior tenant fit out of office space including non-structural partitions, ceilings, finishes and millwork.Details
21st fl- interior demolition subject to and interior tenant fit out of office space including non-structural partitions, ceilings, finishes and millwork. | $2,190,000 |
| Apr 14, 2025 | Completed final sign-off Jun 2026 | 600 Montgomery St | Truebeck Construction | 9th & 11th fl t.i. interior alteration of new tenant fit out included conference rooms, storag aeras, enclosed offices, lan rooms w/ associated mep & structural workDetails
9th & 11th fl t.i. interior alteration of new tenant fit out included conference rooms, storag aeras, enclosed offices, lan rooms w/ associated mep & structural work | $6,500,000 |
| Apr 11, 2025 | Completed final sign-off Mar 2026 | 600 Montgomery St | Truebeck Construction | 23rd & 24th fl: interior alteration of conference rooms, storage areas, enclosed offices, pantries and lan rooms with associated mep, (structural for communicating opening for convenience stairs under separate permit. pa#2025-0424-5130)Details
23rd & 24th fl: interior alteration of conference rooms, storage areas, enclosed offices, pantries and lan rooms with associated mep, (structural for communicating opening for convenience stairs under separate permit. pa#2025-0424-5130) | $5,500,000 |
| Feb 12, 2025 | Completed final sign-off Nov 2025 | 600 Montgomery St | Hathaway Dinwiddie Co. | 35/f: t.i.: demo of (e) non-structural interior partitions, ceilings & finishes. construction on (n) non-structural interior partiions, ceilings, lighting fixtures.Details
35/f: t.i.: demo of (e) non-structural interior partitions, ceilings & finishes. construction on (n) non-structural interior partiions, ceilings, lighting fixtures. | $906,459 |
| Aug 28, 2024 | Completed final sign-off Jul 2025 | 517 Washington St | Hathaway Dinwiddie Co. | deferred permit from bpa 202407186772 and 202407106168 for dph review of kioskDetails
deferred permit from bpa 202407186772 and 202407106168 for dph review of kiosk | |
| Oct 7, 2022 | Completed final sign-off Apr 2025 | 600 Montgomery St | Hathaway Dinwiddie Co. | mep for bpa#202203039170 27th floorDetails
mep for bpa#202203039170 27th floor | |
| Oct 7, 2022 | Completed final sign-off Jun 2025 | 600 Montgomery St | Hathaway Dinwiddie Co. | mep for bpa#202202027172 26th floorDetails
mep for bpa#202202027172 26th floor | |
| Mar 15, 2022 | Completed final sign-off Oct 2024 | 600 Montgomery St | Hathaway Dinwiddie Co. | garage g1: remodel of building garage including but not limited to non-structural partitions, electrical, lighting, millwork, and finishes. no change in occupancy, use or area.Details
garage g1: remodel of building garage including but not limited to non-structural partitions, electrical, lighting, millwork, and finishes. no change in occupancy, use or area. | $801,978 |
| Mar 8, 2022 | Completed final sign-off Jul 2025 | 600 Montgomery St | Hathaway Dinwiddie Co. | 48/f: tenant lounge: change of use from b to a2. new non-structural interior partitions, ceiling, lighting, fixtures, millwork, and finishes.Details
48/f: tenant lounge: change of use from b to a2. new non-structural interior partitions, ceiling, lighting, fixtures, millwork, and finishes. | $201,836 |
| Oct 4, 2021 | Never finaled issued Feb 2022, no final | 600 Montgomery St | Hathaway Dinwiddie Co. | remodel building lobby: entire ground fl storefront, structural and non structural demo, new structural fl assemblies, new roofing, relocation of fcc room. non structural partition, millwork & finishes. mep deferredDetails
remodel building lobby: entire ground fl storefront, structural and non structural demo, new structural fl assemblies, new roofing, relocation of fcc room. non structural partition, millwork & finishes. mep deferred | $6,500,000 |