Linn County, Oregon Building Permit Guide

Linn County Planning & Building, 315 SW 4th Avenue, First Floor, Albany, OR 97321, reviews construction plans, issues building permits and inspects work in progress, and also handles land use. Land use and building information: (541) 967-3816, Monday to Friday 8:30 AM to 5:00 PM. Applications go through the Oregon ePermitting system.

This guide covers the county office and two cities with their own programs, Albany and Sweet Home. Linn County’s fees, inspection scheduling and septic rules were not checked for this guide, so ask Planning & Building.

Who handles permitting in Linn County?

Linn County also administers all permits and inspections for Mill City, according to Marion County’s permit-responsibility page.

Albany and Sweet Home

Albany (county seat)

Albany Community Development, Building, is open Monday to Friday 8 a.m. to noon and 1 to 5 p.m. Building, plumbing, electrical, mechanical, encroachment and erosion prevention and sediment control applications all go on the City of Albany’s ePermitting site, where plans are uploaded and fees paid in one transaction. The city’s 2026-2027 fee guide (rev. 07/01/2026) charges $815.00 for the first $100,000 of valuation plus $4.45 per additional $1,000, with building plan review at 50% of the building permit fee ($89 minimum). Its example for a 2,000 sq ft dwelling lists a $1,940 building permit fee and a $970 plan review fee, with Building Division fees of $4,165 before other charges.

Sweet Home

Sweet Home runs its own building program at 3225 Main Street, Sweet Home, OR 97386 (541-367-7993), open 7:00 AM to 5:30 PM Monday to Thursday. Its inspections are done by Northwest Code Professionals on Monday, Tuesday and Thursday mornings; schedule 24 hours ahead through BuildingPermits.Oregon.gov.

How to get a building permit in Linn County

An Oregon building permit expires if work does not start within 180 days of issue or stops for 180 days; the building official can extend it in writing, 180 days at a time. Oregon’s statewide code rules

Official Linn County permitting resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Linn County Planning & Building
• Marion County permit responsibility (Mill City)
• Albany Building
• Albany fee guide
• Sweet Home Building Program

Frequently asked questions

Where is the Linn County building office?

315 SW 4th Avenue, First Floor, Albany, OR 97321; (541) 967-3816, Monday to Friday 8:30 AM to 5:00 PM.

Who issues permits in Mill City?

Linn County administers all permits and inspections for Mill City, according to Marion County.

Who inspects in Sweet Home?

Northwest Code Professionals, on Monday, Tuesday and Thursday mornings; schedule 24 hours ahead.

Simplify Linn County permitting with Alliance Permitting

• Confirm whether Linn County, Albany or Sweet Home has the property
• Prepare the Oregon ePermitting application for Planning & Building
• Track land use and building review through to inspections

Alliance Permitting is a permit documentation and submission company in Oregon. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Linn County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.