Benton County, OR Building Safety: Building Permits (2026)
Key Facts
- Governing chapter
- Benton County Code Chapter 11
- Applies in
- unincorporated Benton County only
- Permit voids
- 180 days if work not started
- Full expiration
- 6 months from issuance
- Unpermitted work
- special investigation + fee, § 11.130
- Reinstatement
- within 1 year, half fee
Summary
The Benton County Building Code (Chapter 11) requires a permit application, plans and fees before the building official will authorize construction, alteration or repair work in the unincorporated county. Section 11.105 sets the review and issuance process, and § 11.130 requires a special investigation, with an added fee, whenever work needing a permit starts before one is obtained. Permits expire if work doesn't start within 180 days.
(1)The application, plans, specifications, computations and other data filed by an applicant for a permit shall be reviewed by the building official. ... If the building official finds that the work described in application for a permit and the plans, specifications and other data filed therewith conform to the requirements of this code and other pertinent laws and ordinances, and that the fees have been paid, the building official shall issue a permit therefor to the applicant. ... 11.130 - Work Without a Permit/Investigation Fees.(1)Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work.(2)An investigation fee, in addition to the permit fee, may be collected whether or not a permit is then or subsequently issued.
Full Breakdown
020, to administer the specialty codes itself, so Corvallis, Philomath, Adair Village and Monroe run their own permit desks while the county code governs unincorporated land. 110). 105(3)). Permits are not open-ended. 125, a permit becomes null and void if work doesn't commence within 180 days of issuance, or if work is suspended or abandoned for 180 days after starting, and every permit expires outright six months after issuance regardless, unless the county approved a longer completion period for a large or complex project. An expired permit can be reinstated within one year if the code hasn't changed and the plans haven't, at half the original permit fee.
130 addresses work that starts without a permit: it triggers a mandatory special investigation, and an investigation fee is added on top of the permit fee whether or not a permit is ultimately issued. 140).
Violations & Fines
Starting work without first obtaining a required permit triggers a mandatory special investigation under § 11.130, plus an investigation fee on top of the standard permit fee, whether or not a permit is later issued; that payment doesn't excuse the applicant from every other code requirement or from any other penalty the law allows. The building official can also order noncompliant work stopped in writing under § 11.060 until specifically authorized to resume.
Frequently Asked Questions
Where does Benton County's building permit requirement apply?
How long is a Benton County building permit good for?
What happens if I start construction before getting a permit?
Sources & Official References
Other rules in Benton County
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