Building Permits in Lane County, Oregon

Oregon's mandatory statewide code (ORS ch. 455) is the 2023 Oregon Residential Specialty Code (based on the 2021 IRC, effective Oct. 1, 2023), and ORSC Section R105.2 requires building permits for most construction while exempting items such as one-story nonhabitable detached accessory structures up to 200 sq ft and 15 ft tall, concrete sidewalks/slabs/driveways, painting and interior finishes (tiling, carpeting, cabinets, countertops), above-grade and on-ground swimming pools, playground equipment, window awnings projecting 54 inches or less, nonbearing partitions that do not create habitable space, siding replacement, masonry repair, gutters and downspouts, non-structural door and window replacement, porch/deck/patio covers up to 200 sq ft located at least 3 ft from lot lines, and nonhabitable membrane-covered frame structures up to 500 sq ft. Separate plumbing, electrical, and mechanical permits may still be required for otherwise exempt items, and ordinary like-for-like repairs need no permit (R105.2.2). Local jurisdictions administer the code and may adopt ordinances that regulate additional items, so confirm requirements with the local building department.

Decks generally require a building permit in Oregon, but 2023 ORSC Section R105.2 (Building, item 10) exempts porches and decks where the walking surface is not more than 30 inches above adjacent grade measured at any point within 3 ft horizontally of the walking surface. Related exemptions cover porch, deck, and patio covers not more than 200 sq ft in floor area and not closer than 3 ft to lot lines (item 6). Local jurisdictions administer permits and may apply additional zoning or setback rules, so verify with the local building department.

Oregon law (ORS 479.550) requires an electrical permit before working on any new electrical installation, including installing or altering permanent wiring, adding outlets or light fixtures, upgrading circuit breaker panels, and installing low-voltage systems, per the Oregon Building Codes Division. No permit is required for like-kind replacement of receptacles, switches, and light fixtures, replacing fuses or breakers, replacing appliances rated 30 amps or less, or telephone/CATV outlets; homeowners may perform electrical work without an electrician's license only on residential or farm property they (or immediate family) own that is not intended for sale, exchange, lease, or rent (ORS 479.540), but permits and code compliance still apply. Local jurisdictions administer electrical permits and may apply rules differently, so verify with the local building department.

Under 2023 ORSC Section R101.2.2, fences constructed of wood, wire mesh, or chain link are exempt from building permits statewide unless a municipality adopts a local ordinance requiring one, and any such local ordinance may not require permits for those fences 7 ft or less in height. Statewide, a fence serving as (or as part of) a swimming pool barrier always requires a building permit, and municipalities may regulate fences of other materials at any height. Because permit thresholds above 7 ft and other-material fences are locally adoptable, always check the local jurisdiction's rules.

Under 2023 ORSC Section R105.2 (Building, item 14), reroofing is exempt from a building permit where the weight of the replacement or repaired roofing and sheathing does not exceed 30 percent of the roof's required live load design capacity based on Table R301.6. Permits are required for reroofing structures in wildfire hazard zones (Section R327), for townhouses, and for installation of building-integrated photovoltaic roof panels or other photovoltaic roof coverings; the Oregon BCD also notes a permit is needed when an entire roof system is replaced with new sheathing. Local jurisdictions may amend or administer these rules differently, so check with the local building department.

Under 2023 ORSC Section R101.2.2, retaining walls are exempt from statewide building permits except that a permit is always required for walls that provide safeguards for building users, support a regulated building, or retain material that could impact a regulated building if not restrained. A municipality may adopt an ordinance regulating other retaining walls, but may not require permits for walls 4 ft or less in height measured from the bottom of the footing to the top of the wall, unless the wall supports an ascending slope steeper than 3:1 or a non-soil surcharge. Local jurisdictions may set higher thresholds or additional requirements, so confirm locally.

Under 2023 ORSC Section R105.2 (Building, item 1), no building permit is required for a nonhabitable one-story detached accessory structure if its building area does not exceed 200 sq ft and its height does not exceed 15 ft measured from grade plane to the average height of the highest roof surface. An exception allows up to 400 sq ft on parcels of 2.0 acres or more where the structure is at least 20 ft from all property lines and regulated structures. Larger or habitable sheds require a permit, and local jurisdictions may amend or administer these rules differently, so verify with the local building department.

Oregon requires a plumbing permit to replace a residential water heater statewide because an improperly installed unit can act as a dangerous pressure vessel, per the Oregon Building Codes Division's residential permit guidance under the Oregon Plumbing Specialty Code. By contrast, no plumbing permit is needed for like-for-like repair or replacement of faucets, sinks, toilets, or showerheads, or for adding to an irrigation system that already has an approved backflow device; concealed piping alterations and emergency repairs to more than 5 feet of concealed pipe do require permits. Local jurisdictions administer plumbing permits and may have additional requirements, so confirm with the local building department.