A building permit is required when building a fence taller than seven feet. The height is measured from the ground where the posts or supports enter the ground to the top of the fence, including any lattice, posts or any other material added to the top. Fences under seven feet tall do not need a building permit but may need a zoning permit.
For more information, visit the Planning and Zoning staff at the Development Services Center or call (503) 823-7526.
Your building permit will be reviewed under provisions in the Residential Specialty Code (formerly the One and Two Family Dwelling Specialty Code) based on the 2003 IRC. More information on building codes.
The following information must be submitted when applying for a permit to construct a fence. Since every project is unique, there may be some situations where you will be asked to provide additional information.
To submit for a permit, bring the completed building permit application and four (4) copies of site, architectural and structural plans (for the area of proposed work and areas affected by such work ) along with intake fees to the Development Services Center.
Fences may be built on private property, so long as they meet certain height and setback requirements. A setback is the distance measured from your property line to a point inside the property. A setback creates a border inside your property lines. Setback requirements are different in each residential zone. A front setback is usually larger than the side and rear setbacks. For purposes of determining setback, the front is the side that borders a street. On a corner lot, the front is the shortest side of the lot that borders a street. If the street frontages are of equal length, you may choose which to call the front.
Visit the Planning and Zoning staff at the Development Services Center or call (503) 823-7526 for help with:
Fences taller than eight feet must meet the requirements listed below:
|Front Setback||20 feet||20 feet||20 feet||15 feet||10 feet||10 feet|
|Side/Rear Setback||10 feet||10 feet||10 feet||5 feet||5 feet||5 feet|
(2) Front Yard Fences
If you are planning to build a fence in your front yard, call the Portland Bureau of Transportation/Engineering at (503) 823-7002 for help in locating property lines along a street. Property lines that divide your lot from your neighbors may be harder to find.
(3) Structural Engineering
Fences taller than six feet measured from the owner's side at grade level must be built to resist winds.
(4) Pressure Treated Materials
Any part of a wood fence that touches concrete or that is within six inches of the ground must be pressure-treated wood or wood that is naturally resistant to decay, such as cedar or redwood. Pressure treated wood installed below grade must be stamped as approved for ground contact.
After you pay intake fees, your project will be "under review". The bureaus/review groups that will check a typical fence project are:
The yellow inspection card lists all the inspections you will likely need during your construction project, and what work needs to be done first.
Once your building permit is issued, erosion control measures must be installed, inspected and approved prior to beginning any further ground disturbing activities.