Eugene assesses System Development Charges (SDCs) on new ADUs covering wastewater, stormwater, parks, and transportation. Smaller ADUs receive reduced SDC assessments under Eugene Code Chapter 7 (Public Improvements). State law also imposes the School Construction Excise Tax. Building permit fees scale with construction valuation. Total fees for a typical ADU range from approximately $8,000 to $18,000.
Eugene charges System Development Charges on new ADUs to fund infrastructure capacity, governed by Eugene Code Chapter 7. SDC categories include Wastewater (sewer), Stormwater, Parks, and Transportation. Eugene Water & Electric Board (EWEB) charges separate water SDCs. SDCs are typically calculated proportionally for smaller dwellings, and ADUs under approximately 800 sq ft often pay reduced SDCs versus full-size houses. Total Eugene SDCs for a new ADU typically range from $8,000 to $18,000 depending on size and connections required. Building permit fees through Eugene Permits and Information Center scale with construction valuation. The Oregon School Construction Excise Tax (CET) applies on new residential floor area (4J School District rate varies; statewide cap is set in ORS 320.170-320.189). Oregon also imposes a State Construction Excise Tax for affordable housing. Affordable deed-restricted ADUs may qualify for SDC waivers or reductions under Eugene's affordable housing policies.
Failure to pay assessed SDCs prevents issuance of a Certificate of Occupancy and may result in liens on the property under Eugene Code Chapter 7. Underreporting ADU size or construction value to reduce SDCs constitutes fraud and can void permits. Connection to city utilities without paying assessed connection fees is a separate violation.
Eugene, OR
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Eugene, OR
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Eugene, OR
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Eugene, OR
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Eugene, OR
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Eugene, OR
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See how Eugene's adu impact fees rules stack up against other locations.
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