Holladay and Sons handled everything from site prep to final installation without any surprises. The crew was professional and easy to communicate with the whole way through.
ADU Construction in Northwest Oregon, OR
Holladay and Sons LLC builds ADUs for Northwest Oregon homeowners who need added living space on their property.
- Adds a fully self-contained living unit to your existing lot without purchasing new land
- Creates a rental income opportunity on your Northwest Oregon property
- Supports multigenerational living by keeping family close while maintaining privacy
- Increases overall property value with a permitted, code-compliant structure
- Built to handle Northwest Oregon's wet climate with proper drainage and moisture-resistant construction
- Covers all project phases from site review and design to utility hookups and final inspection
Expert ADU Construction in Northwest Oregon, OR
ADU construction in Northwest Oregon gives homeowners a practical way to add a fully functional second unit to their property. Holladay and Sons LLC handles the full scope of work, from site evaluation and design coordination to framing, utility connections, and final inspections. We build detached backyard cottages, attached units, garage conversions, and basement apartments. Oregon state law supports ADU development in residential zones, and local jurisdictions across Northwest Oregon are required to process ADU applications within urban growth boundaries. That means most single-family lots in the region qualify. Northwest Oregon's wet climate calls for tight building envelopes, proper drainage planning, and materials that hold up against persistent moisture. We account for all of that from the start. Whether you want a rental unit, a space for aging parents, or a private guest suite, we build ADUs that function as real homes. Call Holladay and Sons LLC to talk through what your property can support.
What's included
- Adds a fully self-contained living unit to your existing lot without purchasing new land
- Creates a rental income opportunity on your Northwest Oregon property
- Supports multigenerational living by keeping family close while maintaining privacy
- Increases overall property value with a permitted, code-compliant structure
- Built to handle Northwest Oregon's wet climate with proper drainage and moisture-resistant construction
- Covers all project phases from site review and design to utility hookups and final inspection
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ADU Construction FAQ
Common questions about adu construction in Northwest Oregon, OR.
Most single-family lots in Northwest Oregon qualify for at least one ADU under Oregon state law. A site evaluation confirms setbacks, zoning, and utility access specific to your property.
We build detached backyard cottages, attached units, garage conversions, and basement apartments across Northwest Oregon. The right type depends on your lot size, layout, and goals.
Wet conditions in Northwest Oregon require careful drainage planning and moisture-resistant building practices from the ground up. We factor those needs into every ADU project we take on.
Yes, ADUs in Northwest Oregon can be used as long-term rental units on your property. Local rental rules vary by city, so we recommend confirming occupancy requirements with your local planning office.
We manage the full scope of work, including site review, design coordination, framing, utility connections, and inspections. You work with one general contractor team from start to finish in Northwest Oregon.
An ADU is a practical solution for keeping aging family members close while giving them their own space in Northwest Oregon. We can build single-level layouts and accessible features to fit those needs.
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Phone
(971) 278-4538Hours
- Monday 7:00 AM - 4:00 PM
- Tuesday 7:00 AM - 4:00 PM
- Wednesday 7:00 AM - 4:00 PM
- Thursday 7:00 AM - 4:00 PM
- Friday 7:00 AM - 4:00 PM
- Saturday Closed
- Sunday Closed