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Garage Conversion Cost in Oregon

In Oregon’s competitive housing market, converting a garage into a livable studio or Accessory Dwelling Unit (ADU) is one of the most efficient ways to add value and square footage. Driven by statewide legislation like HB 2001, Oregon has become one of the most ADU-friendly states in the country. Whether you are creating a rental unit in Portland, a home office in Eugene, or a guest suite in Bend, navigating the unique Pacific Northwest climate and local structural codes is essential for a successful project.

Avg: $28,000 4-10 Weeks 60% ROI

Cost Breakdown

Oregon Avg
Average Cost $28,000
Low End Range $11,200
High End Range $56,000
Per Sq. Ft. $56 - $224

What You'll Pay in Oregon

Transform your garage into living space such as a bedroom, office, or gym.

In Oregon, renovation costs are currently 12% above the national average. This variance is driven by local labor rates (higher than average) and material availability in the region.

  • Budget Buffer: We recommend adding 15-20% for unexpected issues.
  • Labor vs. Materials: Typically a 50/50 split for this project type.
  • Permits: Budget $500-$2,000 for Oregon permits.
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Timeline & Investment Return

Understanding the duration and value of your renovation is crucial for planning. Here is what to expect for a garage conversion in Oregon.

60%
Good Return

Recoup 60% of costs upon resale.

  • Duration: 4 to 10 weeks on average.
  • Permits: Allow 6 weeks for processing.
  • Best Season: May-October.
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Project Roadmap

Feasibility and Permitting
Structural and Envelope Retrofitting
Mechanical, Electrical, and Plumbing (MEP)
Insulation and Drywall
Finishing and Final Inspection

Frequently Asked Questions

Does a garage conversion count as an ADU in Oregon?

If the conversion includes independent living facilities (kitchen, bathroom, and sleeping area), it is classified as an ADU. If it is just an extra bedroom or office without a kitchen, it is typically treated as a 'habitable space addition'.

What is the average cost of a garage conversion in Oregon?

Basic conversions for a home office or gym range from $15,000 to $30,000. Full ADU conversions with plumbing and kitchens typically range from $75,000 to $125,000 depending on utility trenching needs.

What is the minimum ceiling height for a legal conversion in Oregon?

According to the ORSC, habitable spaces must generally have a minimum ceiling height of 7 feet. However, some jurisdictions allow 6'8" for existing structures being converted.

Are egress windows required?

Yes, if the space will be used for sleeping. The window must have a minimum net clear opening of 5.7 square feet and a sill height no higher than 44 inches from the floor.

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