How long does it take to get a construction permit in Oregon?

Timelines vary by jurisdiction. Simple grading permits in rural counties may be approved in 1-2 weeks. Building permits in cities like Portland, Salem, or Eugene typically take 4-8 weeks for residential and 8-16 weeks for commercial. Complex projects requiring land use review can take 6-12 months.

How much does a grading permit cost in Oregon?

Grading permit fees range from $200 to $2,500 depending on the volume of earthwork and the jurisdiction. Most counties charge a base fee plus an additional per-cubic-yard fee for earthwork over a threshold (typically 50-100 cubic yards). Plan review fees add another $100-$500.

Do I need a permit to grade my own property?

In most Oregon jurisdictions, you need a grading permit if you are disturbing more than 50 cubic yards of soil (roughly a 10x10x15 foot area). Small landscaping projects and gardening are typically exempt. If you are within city limits, the threshold may be lower. Always check with your local building department.

What happens if I start work without a permit?

Working without a required permit in Oregon can result in stop-work orders, fines of $500-$5,000 per violation, and being required to obtain an after-the-fact permit at double the normal fee. In serious cases, you may be required to restore the site to its original condition at your expense.

Can my contractor pull permits for me?

Yes. Licensed contractors in Oregon can and commonly do pull permits on behalf of property owners. This is standard practice for excavation and grading work. Make sure your contractor is licensed with the Oregon CCB (Construction Contractors Board) and carries current insurance.

How to File for a Construction Permit in Oregon: Step-by-Step

Oregon Construction Permits: What You Need to Know

Every construction project in Oregon requires some form of permit, whether it is a backyard regrading project or a multi-acre commercial development. The permit process exists to ensure work meets building codes, environmental regulations, and safety standards.

The process is not complicated once you understand the steps, but it varies by jurisdiction. Lane County handles things differently than Multnomah County, and the City of Eugene has different requirements than unincorporated Linn County.

This guide walks you through the process step by step, with specific information for communities along the I-5 corridor from Portland to Eugene where Cojo Excavation & Asphalt operates.

Types of Permits for Construction and Excavation

Grading Permit

What it covers: Moving earth, changing site elevations, filling or excavating soil

When required: Most jurisdictions require a grading permit when disturbing more than 50 cubic yards of soil. Some cities set the threshold lower.

Who issues it: City building department (within city limits) or county building department (unincorporated areas)

Typical cost: $200-$2,500 depending on earthwork volume

Typical timeline: 1-4 weeks for standard projects

Building Permit

What it covers: Construction of structures, including foundations, buildings, retaining walls over 4 feet, and significant structural modifications

When required: For any new structure or major structural modification

Who issues it: City or county building department

Typical cost: $1,000-$15,000+ based on project valuation

Typical timeline: 4-16 weeks depending on project complexity and jurisdiction

DEQ 1200-C Erosion Control Permit

What it covers: Erosion and sediment control for construction sites

When required: Any site disturbance of 1 acre or more (or less than 1 acre if part of a larger common plan of development)

Who issues it: Oregon Department of Environmental Quality (DEQ) or local DEQ agent

Typical cost: $1,100-$4,800 depending on site size and risk level

Typical timeline: 2-4 weeks for standard applications

Land Use Permit / Conditional Use Permit

What it covers: Approval for the intended use of the property (zoning compliance)

When required: When the proposed use is not outright permitted in the current zone, or when development triggers site plan review

Who issues it: City or county planning department

Typical cost: $500-$5,000+

Typical timeline: 4-12 months (includes public notice and possible hearings)

Other Permits You May Need

Stormwater management plan approval — required in most cities for impervious surface additions
Septic system permit — from county environmental health for on-site sewage systems
Approach/driveway permit — from the road authority (city, county, or ODOT) for new driveway connections
Utility connection permits — from the water and sewer providers
Wetland fill permit — from Army Corps of Engineers and Oregon DSL if wetlands are present
Tree removal permit — required in Portland, Eugene, Corvallis, and other cities with tree preservation ordinances

Step-by-Step: Filing for a Grading and Building Permit

Step 1: Determine Your Jurisdiction

Where your property is located determines which agency reviews your permit:

Inside city limits: File with the city building department
Unincorporated county land: File with the county building department
Within an urban growth boundary but outside city limits: May be either city or county depending on local agreements

Check your property's tax lot on the county assessor's website to confirm jurisdiction.

Step 2: Schedule a Pre-Application Meeting

For projects larger than a single residential lot, schedule a pre-application meeting with the planning and building departments. This free or low-cost meeting (typically $0-$250) brings together reviewers from multiple departments to discuss your project before you invest in detailed plans.

What to bring:

Preliminary site plan showing property boundaries, proposed structures, and access
Description of the project scope (what you want to build and how much grading is needed)
Questions about specific requirements you are unsure about

What you will learn:

Which permits are required
What plans and studies must be submitted
Specific code requirements for your site (setbacks, height limits, stormwater, etc.)
Estimated review timelines and fees
Whether land use review is needed before building permits can be filed

This step saves enormous time and money. It is far better to learn about a requirement before you design around it than to discover it during plan review and have to redesign.

Step 3: Prepare Required Documents

For a typical grading and building permit, you will need:

Site plan (prepared by a civil engineer or surveyor):

Property boundaries with dimensions
Existing and proposed contours (topography)
Cut and fill volumes
Setbacks from property lines and easements
Stormwater management features
Erosion control plan
Existing trees to be removed and preserved

Building plans (prepared by an architect or designer):

Floor plans, elevations, and sections
Foundation design
Structural calculations (stamped by an Oregon-licensed engineer for commercial projects)

Geotechnical report (prepared by a geotechnical engineer):

Soil bearing capacity
Groundwater depth
Foundation recommendations
Slope stability analysis (if applicable)
Required for most commercial projects and residential projects on slopes or in known problem areas

Stormwater report (if required by jurisdiction):

Pre-development and post-development runoff calculations
Proposed detention/retention facilities
Water quality treatment measures

Step 4: Submit the Application

Most Oregon jurisdictions now accept electronic submissions, though some still require paper plans. Submit the following:

Completed permit application form
Plan sets (typically 2-3 copies for paper, or PDF uploads)
Supporting documents (geotech report, stormwater report, etc.)
Permit fees (application fee is usually due at submission; some jurisdictions split fees between application and issuance)

Keep copies of everything you submit. You will need them when responding to review comments.

Step 5: Plan Review

Your submission enters the plan review queue, where it is reviewed by multiple departments:

Building: Structural, mechanical, plumbing, electrical code compliance
Planning/Zoning: Setbacks, lot coverage, height, use compliance
Fire: Access, hydrant spacing, sprinkler requirements
Public Works/Engineering: Grading, drainage, street improvements, utility connections
Environmental: Erosion control, wetland buffers, tree preservation

Each department issues comments. These may be:

Approved as submitted — the review is complete
Approved with conditions — approved but you must meet specific conditions (common for grading permits)
Corrections required — the reviewer found issues that must be addressed before approval

Step 6: Respond to Corrections

If corrections are required, your engineer or architect revises the plans and resubmits. This is a normal part of the process — most first submissions receive some corrections.

Tips for faster corrections:

Address every comment, even if you disagree. Provide a written response to each item.
If a comment is unclear, call the reviewer directly. A 5-minute phone call can prevent weeks of back-and-forth.
Resubmit corrections as soon as possible. Your project goes back into the queue, and delays compound.

Step 7: Permit Issuance

Once all departments approve, the permit is issued. You will receive:

The permit document (must be posted at the job site)
Approved plan sets (must be available at the job site)
A list of required inspections

Step 8: Inspections

During construction, you (or your contractor) must schedule inspections at specific milestones:

Erosion control — before any grading begins
Rough grading — after major earthwork, before building construction
Foundation — after forms and rebar are placed, before pouring concrete
Additional inspections — framing, mechanical, plumbing, electrical, final

Inspections are typically scheduled by phone or online 24-48 hours in advance. The inspector visits the site, reviews the work, and either approves it or requests corrections.

Jurisdiction-Specific Tips Along the I-5 Corridor

Portland Metro (Multnomah, Washington, Clackamas Counties)

Longest review times in Oregon (8-16 weeks for residential, 12-24+ weeks for commercial)
Portland has a tree preservation ordinance requiring permits and mitigation for removing trees over 12 inches in diameter
Washington County requires a Service Provider Letter (SPL) from Clean Water Services before any development permit
Electronic plan submission is standard through the Portland Development Hub

Salem / Keizer (Marion County)

Moderate review times (4-8 weeks residential, 8-12 weeks commercial)
Salem requires a pre-application conference for most commercial projects
Flood plain regulations affect many properties near Mill Creek and the Willamette River

Corvallis / Albany (Benton / Linn Counties)

Relatively fast review times (2-4 weeks residential, 4-8 weeks commercial)
Corvallis has a Significant Natural Feature overlay that restricts development on steep slopes and near waterways
Linn County has straightforward grading permit requirements for rural properties

Eugene / Springfield (Lane County)

Moderate to long review times (4-8 weeks residential, 8-16 weeks commercial)
Eugene has strict stormwater management requirements for any new impervious surface
Lane County is efficient for rural grading permits (1-3 weeks)
Springfield is generally faster than Eugene for similar project types

Common Mistakes That Delay Permits

Submitting incomplete applications. Missing documents send you to the back of the queue. Check the submittal checklist twice before filing.
Ignoring the pre-application meeting. Skipping this step to save time almost always costs more time in corrections and resubmittals.
Not checking for environmental constraints early. Wetlands, riparian areas, and steep slopes can add months of additional review. Know your site constraints before starting design.
Designing without a geotech report. Foundation designs based on assumptions rather than actual soil data frequently fail plan review and require redesign.
Underestimating stormwater requirements. Oregon's stormwater regulations have tightened significantly in recent years. Design detention and treatment into the project from day one.
Starting work before the permit is issued. Stop-work orders and fines are not worth the few weeks saved. Make sure you have the physical permit in hand before breaking ground.

How Cojo Helps with the Permit Process

While Cojo is an excavation and paving contractor, not a permit expediter, we work closely with our clients' engineering teams to ensure the grading and site work we perform meets permit requirements. We can:

Provide pre-construction input on site access, staging, and grading feasibility
Recommend civil engineers and geotechnical consultants we have worked with successfully
Ensure erosion control measures are installed per the approved plan before grading begins
Schedule and pass required grading inspections
Provide as-built documentation for final permit sign-off

Visit our resources page for additional planning information, or contact us to discuss your upcoming project.

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