Before You Build in Gresham, OR: Permit & Rule Checklist (2026)
Everything you need to know before starting a home improvement project
Building a fence, installing a pool, or adding a shed? Each project has its own set of local permits and rules in Gresham. This guide consolidates fence, pool, ADU, shed, fire pit, and landscaping regulations into one checklist so you know what to expect before you start.
Quick Permit Checklist
At-a-glance overview of permit categories in Gresham. Click any card for details.
Fences & Walls
3 rules on file
Swimming Pools
3 rules on file
ADUs & Granny Flats
2 rules on file
Sheds & Outbuildings
2 rules on file
Fire Pits & Outdoor Structures
2 rules on file
Landscaping & Tree Removal
3 rules on file
Fences & Walls
Some RestrictionsHeight limits, materials, permits, and shared fence rules.
Permit Requirements
Few RestrictionsMost residential fences in Gresham do not require a building permit if they meet standard height limits. Fences on or near property lines should verify placement with a survey.
Height Limits
Some RestrictionsGresham Development Code §9.0400 regulates fence heights. Front yard fences are limited to 3.5 feet and side/rear yard fences to 6 feet in residential zones.
Neighbor Fence Rules
Few RestrictionsGresham allows fences on property lines. Oregon law does not require neighbor consent for fences on your own property. Shared fence maintenance costs may be split by agreement.
Swimming Pools
Heavy RestrictionsPool permits, safety fencing, and drainage requirements.
Fencing Requirements
Heavy RestrictionsGresham requires swimming pools to be enclosed by a barrier at least 4 feet high with self-closing, self-latching gates per Oregon building code. Pool barriers must prevent unsupervised child access.
Safety Rules
Heavy RestrictionsGresham follows Oregon building code for pool safety. Pools require permits, inspections, electrical bonding, and approved drain covers to prevent entrapment.
Above-Ground Pools
Some RestrictionsAbove-ground pools in Gresham must meet barrier requirements. Pools with walls less than 48 inches need additional fencing. Ladders must be removable or have a locking barrier.
ADUs & Granny Flats
Some RestrictionsAccessory dwelling unit rules and garage conversion permits.
ADU Rules
Some RestrictionsGresham allows accessory dwelling units (ADUs) in residential zones per Oregon state law (HB 2001). One ADU is permitted per lot. ADUs must meet development code standards for size, setbacks, and parking.
Garage Conversions
Some RestrictionsGarage conversions in Gresham require building permits and must meet building code for habitable space. Converting a garage to living space may be treated as an ADU under Oregon law.
Sheds & Outbuildings
Some RestrictionsShed permits, setback limits, and outbuilding size rules.
Carport Rules
Some RestrictionsGresham Community Development Code Section 7.0420 (Design Standards for Single Detached, Duplex, Triplex and Quadplex) treats carports as accessory structures that face the street. Attached and detached garages and carports facing the street may not exceed 50 percent of the street frontage, must be set back at least 4 feet behind the street-facing wall closest to the street, and the front-yard driveway width is limited to the carport width. Building permits are administered under the Oregon Residential Specialty Code.
Shed Rules
Few RestrictionsSmall sheds under 200 square feet generally do not require a building permit in Gresham. Larger structures require permits and must meet setback requirements from the Development Code.
Fire Pits & Outdoor Structures
Heavy RestrictionsFire pit placement, outdoor burning restrictions, and permits.
Fire Pit Rules
Some RestrictionsGresham allows recreational fires in approved fire pits with size and setback restrictions. Fires must be attended at all times and may be banned during air quality advisories.
Outdoor Burning
Heavy RestrictionsOpen burning is largely prohibited in Gresham and Multnomah County. Backyard debris burning is not allowed. The Oregon DEQ regulates air quality and burning restrictions.
Landscaping & Tree Removal
Some RestrictionsTree removal permits, heritage tree protections, and water rules.
Tree Removal & Heritage Trees
Some RestrictionsGresham regulates tree removal through its Development Code. Significant trees may require a permit before removal. Street trees cannot be removed without city approval.
Tree Trimming
Some RestrictionsGresham requires property owners to maintain trees so they do not obstruct sidewalks, streets, or sight lines. Street trees must have 8 feet of vertical clearance over sidewalks and 14 feet over streets.
Water Restrictions
Some RestrictionsGresham follows regional water conservation guidelines. During summer months, voluntary and sometimes mandatory restrictions apply. The city encourages efficient irrigation practices.
General Permit Tips
When do you typically need a permit?
Most cities require permits for structural work, including fences over a certain height, pools, ADUs, and sheds above a size threshold. Even projects that seem minor can trigger permit requirements, so it is always best to check first.
How to apply for a building permit
Visit your local building department or their website. Most jurisdictions accept online applications. You will typically need a site plan, project description, and may need contractor information. Processing times vary from same-day for simple projects to several weeks for larger builds.
Common permit violations to avoid
Building without a permit, exceeding approved dimensions, and ignoring setback requirements are the most common violations. Penalties can include fines, required removal of the structure, and complications when selling your home.
Permit Guides for Nearby Cities
Looking for rules beyond permits? View all ordinances we track for Gresham.