Benton County

Benton County sits along the western edge of the Willamette Valley, centered around Corvallis and extending into the Coast Range. 3-A Construction, LLC serves homeowners and property developers throughout the county, including Corvallis, Philomath, Adair Village, Monroe, and the surrounding rural areas. From our Jefferson headquarters, we reach most Benton County job sites in about 30 to 40 minutes, depending on location.

The Benton County Community Development Department oversees land use and building permits outside city limits, while Corvallis maintains its own planning division with specific requirements for manufactured homes and ADUs. We have completed numerous projects in both jurisdictions and understand how to navigate Benton County's regulations, including its overlay zones and environmental protections near the Marys River and Willamette River corridors.

Benton County properties range from established residential lots near Corvallis to larger rural parcels in the foothills west of Philomath. Our work in the county covers manufactured home placement, foundation installation, septic systems for rural properties, excavation and grading, and the construction of garages and accessory structures.