Benton County, OR — 2026 Building Permit Guide

On this page 6

§ 01

Permit authority

Benton County Community Development Building Division

Street address

Community Development Division, Benton County, Oregon

Phone

541-766-6297

permitcheck@bentoncountyor.gov

Coverage

All construction in unincorporated areas within Benton County boundary, except within city limits of Corvallis, Philomath, and Albany.

Online portal

BuildingPermits.Oregon.gov

Accela (Statewide Oregon ePermitting System)

Website

Department website

Additional resources

§ 02

When a permit is required

Permit triggers and exempt work for Benton County

Building permits required for new construction, additions, interior remodels of single-family homes, all commercial work, and trade permits for electrical, plumbing, HVAC work.

Scope of work

Permit?

Group U structures (effective Nov. 28, 2023): detached sheds, detached carports, storage buildings, detached decks, and fences no longer require permits

Exempt

Exception: attached structures or those for commercial use still require permits

Exempt

Exempt Group U structures (effective Nov. 28, 2023): detached sheds, detached carports, storage buildings, detached decks, and fences no longer require permits
Exempt Exception: attached structures or those for commercial use still require permits

Note: Exemptions apply only to permit requirements; zoning and other regulatory requirements may still apply.

Building code: Oregon Building Code (Residential Specialty Code, Structural Specialty Code, Mechanical/Electrical/Plumbing codes)
Permit validity: 180 days from issuance; extends another 180 days upon passing inspection.

Source: Benton County Community Development Building Division ↗

§ 03

Application process

Application → plan check → issuance → inspection → final

01

Applications available online through statewide ePermitting system or in hard copy.
02

For in-person submission: call 541-766-6297 or email permitcheck@bentoncountyor.gov to schedule appointment.
03

In-person appointments available 9:00 AM to 1:00 PM on-the-hour only.
04

Submit completed application and supporting documents via ePermitting portal or at appointment.
05

County reviews completeness and routes for technical review.
06

Pay permit fees upon issuance.
07

Permit validity: 180 days from issuance; extends another 180 days upon passing inspection.

Source: Benton County Community Development Building Division ↗

§ 04

Fee schedule

Benton County building permit fees

Fee type

Amount

Permit fee formula

Based on construction value using ICC Building Valuation table

Reinspection fee

$50.00

3% surcharge for credit card payments online. Contact 541-766-6819 for detailed fee estimates.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

How to schedule

Online scheduling portal (online)
888-299-2821 (phone)

Scheduling deadline: Inspection requests received after 7:00 a.m. accommodated next day unless later date requested.

Typical sequence: Commercial electrical and plumbing inspections available online. Passing inspection extends permit validity another 180 days.

Source: Benton County Community Development Building Division ↗

§ 06

Frequently asked

Common questions about unincorporated Benton County permits

01 Do I need a building permit in unincorporated Benton County, OR? ▸

Building permits required for new construction, additions, interior remodels of single-family homes, all commercial work, and trade permits for electrical, plumbing, HVAC work.

02 How much does a building permit cost in unincorporated Benton County, OR? ▸

Building permit fees in unincorporated Benton County, OR are set by the local building department and vary by project type and valuation. Fees are calculated as: Based on construction value using ICC Building Valuation table.

03 How do I apply for a building permit in unincorporated Benton County, OR? ▸

To apply for a building permit in unincorporated Benton County, OR, follow these steps: 1. Applications available online through statewide ePermitting system or in hard copy. 2. For in-person submission: call 541-766-6297 or email permitcheck@bentoncountyor.gov to schedule appointment. 3. In-person appointments available 9:00 AM to 1:00 PM on-the-hour only. 4. Submit completed application and supporting documents via ePermitting portal or at appointment. 5. County reviews completeness and routes for technical review. 6. Pay permit fees upon issuance. 7. Permit validity: 180 days from issuance; extends another 180 days upon passing inspection.

04 What work is exempt from building permits in unincorporated Benton County, OR? ▸

Not all construction work requires a permit in unincorporated Benton County, OR. The following work is generally exempt: Group U structures (effective Nov. 28, 2023): detached sheds, detached carports, storage buildings, detached decks, and fences no longer require permits; Exception: attached structures or those for commercial use still require permits. Note: Exemptions apply only to permit requirements; zoning and other regulatory requirements may still apply. When in doubt, confirm with the local building department before starting work.

05 How do I schedule a building inspection in unincorporated Benton County, OR? ▸

Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Benton County, OR via: Online scheduling portal, 888-299-2821. Inspection requests received after 7:00 a.m. accommodated next day unless later date requested..

last verified April 2026 source Benton County Community Development Building Division ↗ entry id permits/oregon/benton/unincorporated

Report a correction

Educational reference. Permit rules and fees change — confirm current requirements directly with Benton County Community Development Building Division before applying. Jaspector is not legal advice.

Unincorporated Benton County