PIAZZA CONSTRUCTION
California contractor license #406456 · Penngrove, Sonoma County
License
- License number
- 406456
- Status
- Clear
- Classifications
- A General Engineering Contractor
- Business type
- Sole Owner
- Issued
- Jun 12, 1981
- Expires
- Jun 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — Everest Premier Insurance Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Oct 1, 2025. Verify license #406456 on CSLB's License Check.
California public works
PIAZZA CONSTRUCTION appears on 44 public works projects registered with the California Department of Industrial Relations, 26 of them as the prime contractor, for 23 awarding bodies between 2019 and 2026. Projects it led total $24,794,773 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 10, 2026 | EFA - 04A7641Storm drain & flood control | California Department of Transportation | Prime | $224,700 |
| Jul 28, 2026 | Mt. Veeder Rd MPM 4.3/ 3.25, RDS 26-24Storm drain & flood control | Napa County Public Works | Prime | $1,268,000 |
| Jul 7, 2026 | Pump Station Fire Hardening ImprovementWater | Marin Municipal Water District | Prime | $397,000 |
| Jun 29, 2026 | On-Call Contract for Construction ProjecOther | Las Gallinas Valley Sanitary District | Prime | $250,000 |
| Jun 2, 2026 | Miracle Mile EAST PRPOther | Marin Municipal Water District | Prime | $1,070,000 |
| May 20, 2026 | FY25-26 Isolation Valve ProjectWater | Hidden Valley Lake Community Services District | Prime | $186,507 |
| Apr 28, 2026 | SR Water Reuse System On-Call Phase 12Other | City of Santa Rosa | Prime | $461,000 |
| Mar 17, 2026 | Roads & Trails 2026-2028Storm drain & flood control | Marin Municipal Water District | Prime | $2,113,276 |
| Mar 17, 2026 | Main Street Sewer Mainline RepairSewer & wastewater | Engineering Division City of Sebastopol | Prime | $70,000 |
| Feb 25, 2026 | 04A7510Storm drain & flood control | California Department of Transportation (Caltrans) | Prime | $606,500 |
| Jan 6, 2026 | Sodium Hypochlorite UpgradeElectrical, low voltage & AV | City of Lakeport | Prime | $882,000 |
| Aug 19, 2025 | Colby & Seahaven Tank Sites Water Tank RWater | Inverness Public Utility District | Prime | $1,552,500 |
| Jul 11, 2025 | C31859Storm drain & flood control | County of Sonoma – SPI _ Sonoma Public Infrastructure | Subcontractor | $926,496 |
| Jun 12, 2025 | Analy Quad, Maggini, Quinn Valve ReplaceDemolition & site work | Sonoma County Junior College District dba Santa Rosa Junior College | Prime | $64,250 |
| May 20, 2025 | Green Island Rd Reconstruction and WidenPaving & streets | City of American Canyon | Subcontractor | $12,116,149 |
| Apr 16, 2025 | ELB - 04A7272Storm drain & flood control | California Department of Transportation (Caltrans) | Prime | $626,000 |
| Mar 20, 2025 | Parr Tank and PipelineWater | North Gualala Water Company, INC | Prime | $2,612,500 |
| Feb 20, 2025 | Chlorine Bleach Conversion ProjectOther | Bodega Bay Public Utility District | Prime | $1,000,500 |
| Jan 2, 2025 | EFA - 04A7238Storm drain & flood control | California Department of Transportation (Caltrans) | Prime | $7,270,000 |
| Nov 15, 2024 | PSTC Concrete RemovalConcrete & masonry | Sonoma County Junior College District dba Santa Rosa Junior College | Prime | $58,900 |
| Sep 10, 2024 | Sewer Lift Station A Tank ReplacementSewer & wastewater | Lake Berryessa Resort Improvement District | Prime | $1,551,640 |
| Aug 12, 2024 | 2024 Water & Sewer Main Replacement ProjSewer & wastewater | City of Lakeport | Subcontractor | — |
| Aug 9, 2024 | 2024 Tubbs Island Erosion Repair ProjectStorm drain & flood control | Vallejo Flood and Wastewater District | Prime | $35,000 |
| Jul 12, 2024 | Rivera Rd. Water and Sewer Main Line ExtSewer & wastewater | Triad Lagoon Valley LLC | Subcontractor | $3,600,000 |
| Jul 9, 2024 | Dowdell Avenue Extension Phase 1Other | City of Rohnert Park | Subcontractor | $2,993,364 |
Most recent 25 of 44. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.
Awarding bodies it works for most
- California Department of Transportation (Caltrans) · 5 projects
- City of Santa Rosa · 5 projects
- Marin Municipal Water District · 5 projects
- Las Gallinas Valley Sanitary District · 4 projects
- County of Sonoma – SPI _ Sonoma Public Infrastructure · 3 projects
- Bodega Bay Public Utility District · 2 projects
- Lake Berryessa Resort Improvement District · 2 projects
- City of Lakeport · 2 projects
- Sonoma County Junior College District dba Santa Rosa Junior College · 2 projects
- Vallejo Flood and Wastewater District · 1 project
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