Roberto Gonzalez
- Listed as
- contractor, subcontractor
- Firm
- Concretum Operis Inc.
- Based in
- Richmond
- On San Francisco permits
- May 2018 to May 2026
10 permits since 2000 (contractor on 9 permits, subcontractor on 1 permit): 2 completed, 6 in progress, 1 never finaled, 1 expired or cancelled.
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. Their ranked record as a contractor is on their contractor page. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| May 6, 2026 | In progress issued May 2026 | 1935 Webster St | Concretum Operis Inc. | revision 202507030118- to document shotcrete plan sets.Details
revision 202507030118- to document shotcrete plan sets. | |
| Apr 24, 2026 | In progress issued Apr 2026 | 88 Museum Wy | Concretum Operis Inc. | revise retaining wall details on sheet s2 of approved drawing for pa 2018-0529-0320 s1, as well as details 1/s3, 2/s3,3/s6, 4/s6,12/s6.Details
revise retaining wall details on sheet s2 of approved drawing for pa 2018-0529-0320 s1, as well as details 1/s3, 2/s3,3/s6, 4/s6,12/s6. | |
| Mar 12, 2026 | In progress issued Mar 2026 | 32 Clairview Ct | Concretum Operis Inc. | revision to pa #202601304984 to add window in new bathroom area. rearranging framing living spaces, removing non-structural partition walls.Details
revision to pa #202601304984 to add window in new bathroom area. rearranging framing living spaces, removing non-structural partition walls. | $30,579 |
| Jan 30, 2026 | In progress issued Feb 2026 | 32 Clairview Ct | Concretum Operis Inc. | convert 2nd fl closet into bathroom w shower, toilet, lavatory. new bathroom plumbing to tie into existing 1st fl bath sanitary and vent stack. reconfiguring existing 2nd fl closets and interior partitoins. no change to existing building envelope, exterior walls, footprint.Details
convert 2nd fl closet into bathroom w shower, toilet, lavatory. new bathroom plumbing to tie into existing 1st fl bath sanitary and vent stack. reconfiguring existing 2nd fl closets and interior partitoins. no change to existing building envelope, exterior walls, footprint. | $20,000 |
| Nov 20, 2025 | Completed final sign-off Mar 2026 | 2480 Fulton St | Concretum Operis Inc. | unit 2 - adjust existing entrance door opening approximately 3-4' within the same wall o improve access and layout. work including minor framing adjustment, patching of interior wall and reinstallation of existing door assembly. no structural, electrical or mechanical changes proposedDetails
unit 2 - adjust existing entrance door opening approximately 3-4' within the same wall o improve access and layout. work including minor framing adjustment, patching of interior wall and reinstallation of existing door assembly. no structural, electrical or mechanical changes proposed | $7,500 |
| Oct 14, 2025 | In progress issued Oct 2025 | 778 39th Av | Concretum Operis Inc. | revision to pa #202504083945. (n) footings to be poured with shotcreteDetails
revision to pa #202504083945. (n) footings to be poured with shotcrete | |
| Apr 23, 2025 | In progress issued Apr 2025 | 2525 Lyon St | Concretum Operis Inc. | repair the (e) retaining wall (rw) located along the front of the parcel with (3) new "buried" reinforced concrete drilled piers anchored to the uphill side of the (e) brick capped concrete rw. install (6) subdrain shafts (n) at the (e) weep holes.Details
repair the (e) retaining wall (rw) located along the front of the parcel with (3) new "buried" reinforced concrete drilled piers anchored to the uphill side of the (e) brick capped concrete rw. install (6) subdrain shafts (n) at the (e) weep holes. | $8,000 |
| Jun 24, 2022 | Completed final sign-off Sep 2024 | 600 Wisconsin St | Concretum Operis Inc., Nima Construction | shoring engineering permit to approved building permit 202111192835.Details
shoring engineering permit to approved building permit 202111192835. | |
| Nov 6, 2018 | Expired or cancelled expired Apr 2025 | 460 Belvedere St | Concretum Operis Inc., Jeff King And Company Inc, Dollard Construction Inc. | new rear addition/infill at 2nd & 3rd flr of (e) wood-framed single family bldg. interior remodel throughout to include (n) partitions, cabinetry, fixtures & finishes.Details
new rear addition/infill at 2nd & 3rd flr of (e) wood-framed single family bldg. interior remodel throughout to include (n) partitions, cabinetry, fixtures & finishes. | $315,000 |
| May 29, 2018 | Never finaled issued Dec 2022, no final | 88 Museum Wy | Red White & Blue Construction Inc., Zack De Vito Inc | to erect 3 stories, no basement, type v-b, garage/storage. partial vacant lotDetails
to erect 3 stories, no basement, type v-b, garage/storage. partial vacant lot | $325,000 |