Alten Construction new headquarters


November 08, 2017

Alten Construction starts construction on historical Napa courthouse

Alten begins construction on Napa CourthouseNapa, Calif. – Alten Construction (, a full-service San Francisco Bay Area commercial construction company, has commenced construction on the historical Napa County courthouse.

The $11.6 million project, which began last month, will repair the courthouse damage caused by the Aug. 24 south Napa earthquake. The work will also include the 16,000-square-foot courthouse historical renovation, a structural retrofit and new restrooms.

The 18,000-square-foot structure consists of an 1878 historical building that has been unoccupied since the earthquake. An addition was later built and is still in service for the County Court.

“Our team truly enjoys the task of preserving historical elements and restoring significant buildings to their original glory,” said Bob Alten, president of Alten Construction. “For us, it’s about leaving a lasting legacy for the courthouse that honors its past but positions it for the future.” Napa Courthouse Repaired by Alten Construction

The repairs include deconstruction, hazardous mold and lead abatement, structural, mechanical, electrical, fire protection and interior finishes. The antique elements that are being salvaged for the courthouse include the masonry, doors, windows, millwork, casework and lighting fixtures.

For parts of the project, the construction company is tasked with strengthening the walls using a custom-designed, externally bonded composite system, which is relatively new to the construction industry.

Located at 825 Brown St. in Napa, the project is scheduled for completion in fall 2018. Built to replace the original 1856 courthouse, the courthouse continues to serve as the seat of Napa County government.