Forest Grove Manufactured Home Installation & Site Development
Forest Grove sits at the western edge of Washington County where the Tualatin Valley meets the Coast Range foothills. 3-A Construction, LLC provides complete manufactured home installation and site development to Forest Grove property owners from our Jefferson headquarters, approximately one hour and 20 minutes away.

About Forest Grove
Forest Grove occupies the western end of the Tualatin Valley at the base of the Coast Range, with terrain that transitions from flat valley floor on the eastern side to rolling foothills on the west and south. The city's elevation is approximately 200 feet, with the surrounding hills rising to over 700 feet in the Gales Creek and Timber areas to the west. Soils in the Forest Grove area include Laurelwood silt loam and Kinton silt loam on the higher ground, with Woodburn and Aloha silt loams on the valley floor. The valley floor soils can be poorly drained and require careful attention to grading and drainage design, while the hillside clay soils need assessment for slope stability and bearing capacity. Our crews are experienced with both conditions and tailor site development plans to the specific property.
The City of Forest Grove Community Development Department handles permits within city limits, while the surrounding rural properties fall under Washington County Land Use and Transportation. Forest Grove has manufactured dwelling standards that include foundation requirements and site design criteria. The unincorporated areas surrounding the city, particularly to the west and south toward Hagg Lake, Gaston, and the Gales Creek valley, have significant manufactured home activity on rural residential, farm, and timber parcels. Most of these rural properties require individual septic systems, and we coordinate all septic permitting through Washington County Environmental Health.
Forest Grove is home to Pacific University, one of Oregon's oldest educational institutions, and the city hosts the annual Barbarian Rugby Festival and the Corn Roast celebration. Henry Hagg Lake, a popular recreational reservoir operated by the Bureau of Reclamation, is located about seven miles southwest of town off Scoggins Valley Road. The Forest Grove School District serves the community. Our crews work on properties along Highway 47 toward Gaston and Carlton, the Verboort and Cornelius areas to the east, the Gales Creek Road corridor toward the Coast Range, and rural parcels accessed from Thatcher Road, Purdin Road, and the roads surrounding Hagg Lake.
From our Jefferson headquarters, Forest Grove is approximately one hour and 20 minutes via I-5 north and Highway 99W through Newberg, Dundee, and Yamhill County, or via Highway 22 west to Highway 18 to Highway 47 north. The route through Yamhill County allows our crews to coordinate Forest Grove projects with McMinnville and Newberg-area work. We schedule Forest Grove trips to coincide with other western Washington County projects in the Banks and Gaston areas for maximum efficiency.
Forest Grove's position at the valley's western edge gives property owners access to larger rural parcels at more affordable prices than the suburban communities closer to Portland. The agricultural land and timbered foothills surrounding Forest Grove are well-suited for manufactured home placement, and the city's university-town character provides access to services and amenities. Our turnkey approach is particularly valuable for rural Forest Grove-area properties where site development needs can include access road construction, tree clearing, well and septic installation, and the coordination of multiple permits across county departments.
Local Details
Forest Grove is located at the western edge of Washington County where the Tualatin Valley meets the Coast Range foothills. The city is home to Pacific University and sits near Henry Hagg Lake. The surrounding area includes the farming communities of Cornelius, Verboort, and Gaston, along with the timbered Gales Creek valley to the west.
Distance from Headquarters
1 hour 20 minutes via Highway 99W through Yamhill County (approximately 68 miles)
Single Point of Contact
One contractor, one contract, one crew
Fully Licensed
CCB, MDI, DEQ & Plumbing Business licenses
City or County
We work in all jurisdictions statewide
Code Compliant
Modern codes for lasting quality
Portfolio
Projects near Forest Grove
See some of our recent construction and manufactured home installations.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.

Latest Work
High-quality workmanship ensuring lasting durability and aesthetics.
Services Available in Forest Grove
Full-service manufactured home installation and site development

Tie Downs & Seismic Retrofitting
Oregon sits atop the Cascadia Subduction Zone, and the question is not if a major earthquake will occur but when.
Learn MoreDemolition
When it is time to clear the way for something new, 3-A Construction, LLC handles demolition and removal with the same professionalism we bring to construction.
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Permits
Navigating Oregon's permitting process is one of the biggest challenges homeowners face when placing a manufactured home.
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Garages & Pole Barns
From detached garages and workshop buildings to agricultural pole barns and equipment storage, 3-A Construction, LLC builds functional outbuildings that serve the needs of rural Oregon property owners.
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ADU Construction
Oregon's progressive ADU legislation has made it easier than ever to add a second dwelling to your property.
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Excavation
3-A Construction, LLC provides professional excavation and grading services for residential and rural properties across Oregon.
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Foundations
The foundation is the most critical structural element of any manufactured home installation.
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Septic Systems
3-A Construction, LLC holds Oregon DEQ License #39002 for septic system installation, making us one of the few contractors who can handle your complete home site β from septic design and installation through home setup β under a single contract.
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Site Development
Transforming raw land into a build-ready home site is what we do best.
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Home Installation
From delivery coordination to final anchoring, 3-A Construction, LLC provides full-service manufactured home installation across Oregon.
Learn MoreAlso Serving in Washington County
Explore other communities we serve in Washington County
Start Your Forest Grove Project
Ready to break ground? Get a fast, free estimate for your site development or home placement directly through our secure portal.