Before You Build in Yakima, WA: Permit & Rule Checklist (2026)

Yakima fence heights are governed by YMC 15.05.020(G) of the Yakima Urban Area Zoning Ordinance (Title 15 YUAZO). In the front yard within the required setback, no fence or wall may exceed 4 feet. In residential districts, 6 feet is the maximum height in the front yard behind the required setback, and 6 feet is the maximum in side and rear yards (8 feet where the rear yard abuts a designated arterial). In commercial and industrial districts, 8 feet is the maximum in all yards behind the front-yard setback. Within a clear view triangle (YMC 15.05.040), no fence, hedge, or wall may exceed 2.5 feet. All fences over 6 feet must meet the provisions of the International Building Code.

In the City of Yakima, fences over 7 feet in height require a building permit issued by the Codes Division, per the Washington State Building Code adopted in YMC 11.04 (which incorporates the IBC under WAC 51-50). Fences 7 feet or shorter are exempt from a building permit but must still comply with YMC 15.05.020(G) location, height, and clear-view-triangle standards, and YMC 15.05.020(G) also requires that all fences over 6 feet meet the provisions of the International Building Code. Fences within a public right-of-way require a right-of-way use license with annual fees and a certificate of insurance filed with City Codes.

Yakima's Title 15 zoning code regulates fence height, location, and clear-view triangles, but does not impose a cost-sharing requirement on adjoining neighbors. The City of Yakima Planning FAQ states that a fence 'must be on or behind the property line,' and the Town does not survey property lines or arbitrate private boundary disputes. Boundary and partition-fence issues between neighbors are governed by Washington State common law and statutes (including RCW 16.60 fencing of livestock), not by the Yakima Municipal Code. Property line determination is the owner's responsibility, generally through a Washington licensed land surveyor.

Yakima regulates retaining structures under YMC 15.05.020(G), which caps the combined height of a fence and retaining wall at 10 feet measured from the lower elevation. Existing retaining walls at the time the title was passed are allowed a 3.5-foot fence above the retaining wall. Retaining walls are also subject to the Washington State Building Code adopted in YMC 11.04, which incorporates the International Building Code (WAC 51-50) and International Residential Code (WAC 51-51). IRC R404 (Foundation Walls / Retaining Walls) generally requires engineered design for retaining walls over 4 feet measured bottom of footing to top of wall.

Pool barriers in Yakima are governed by the Washington State Residential Code (WAC 51-51) adopted in YMC 11.22, which incorporates IRC Appendix V (Swimming Pools, Spas and Hot Tubs). AGV105.2 requires a barrier at least 48 inches above grade on the side facing away from the pool, with no opening permitting passage of a 4-inch-diameter sphere, a maximum 2-inch grade-to-bottom clearance (4 inches over concrete or fixed solid material), and pedestrian access gates that open outward away from the pool with self-closing and self-latching devices. Yakima's YMC 15.05.020(G) 6-foot residential fence height and clear-view-triangle rules apply to the perimeter fence used as a barrier.

Title 15 YUAZO does not list specific permitted fence materials. YMC 15.05.020(G) regulates fence height, location, and clear-view triangles but is silent on material type for general residential and commercial fences. Sitescreening fences under YMC 15.07 must meet type-specific material standards (sight-obscuring solid materials for Type A, combinations for Types B and C). Fences over 6 feet must meet the International Building Code adopted under YMC 11.04 (WAC 51-50), which governs structural and material safety. There is no Yakima Municipal Code 'finished side' rule for residential fences.

Residential pool, spa, and hot tub barriers in Yakima follow IRC Appendix V Section AGV105.2 as adopted by Washington under WAC 51-51 and applied through YMC 11.22 (Residential Code). The barrier must be at least 48 inches above grade on the side facing away from the pool, openings must not allow a 4-inch-diameter sphere to pass, the maximum vertical clearance between grade and the bottom of the barrier is 2 inches (4 inches over concrete or fixed solid material), and pedestrian access gates must open outward away from the pool, be self-closing, and have a self-latching device. The perimeter pool fence must also satisfy YMC 15.05.020(G) height limits (6 feet residential) and the YMC 15.05.040 clear view triangle.

Residential swimming pools, hot tubs, and spas in Yakima require a building permit from the City of Yakima Codes Division when they hold more than 24 inches of water, under the Washington State Building Code (WAC 51-50) and Washington State Residential Code (WAC 51-51) adopted in YMC Chapters 11.04 and 11.22. A separate electrical permit is administered by Washington State L&I under WAC 296-46B (state-administered electrical inspection). Pools must be enclosed by a barrier meeting IRC Appendix V (2018) as adopted under WAC 51-51. Site plans showing pool, decking, setbacks, and property lines must accompany the permit application.

Residential pool safety in Yakima is governed by IRC Appendix V as adopted under WAC 51-51 and applied through YMC 11.22, including the 48-inch barrier, 4-inch sphere rule, self-closing/self-latching gates, and dwelling-wall door provisions (alarm under UL 2017, self-closing/self-latching with release at least 54 inches above the floor, or ASTM F1346 safety pool cover). Public swimming pools (including pools serving the public, hotels, condominiums of 15+ units, and similar settings) are separately regulated by WAC 246-260 under the Washington Department of Health and the Yakima Health District, with rules covering water quality, anti-entrapment drain covers (federal Virginia Graeme Baker Act), depth markings, and lifeguard or supervision signs.

Hot tubs and spas in Yakima are treated as swimming pools under IRC Appendix V (adopted via WAC 51-51 and YMC 11.22) and require a City of Yakima building permit when they hold more than 24 inches of water. AGV105.5 exempts spas and hot tubs with a safety cover complying with ASTM F1346 from the Appendix V barrier provisions. Electrical permits for the hot tub circuit, NEC Article 680 bonding, and equipment are administered by Washington State L&I under WAC 296-46B. Decks supporting hot tubs must meet the load provisions of the Washington State Residential Code (WAC 51-51) and may require engineered design.

Yakima YMC 15.09.045 governs Accessory Dwelling Units (ADUs) — attached, garage-mounted, or detached stand-alone — with a 1,000 sq ft maximum floor area, exterior design that matches the primary dwelling, and one ADU per single-family lot. Washington HB 1337 (2023, RCW 36.70A.680-696) now requires Yakima as a GMA-planning city to allow at least two ADUs per single-family lot, eliminate owner-occupancy requirements, and waive off-street parking minimums within 0.5 mile of major transit. Yakima must update YMC 15.09.045 to comply by mid-2025 (six months after its next periodic GMA comprehensive plan update).

Converting a Yakima garage to habitable space requires a building permit and electrical permit from the Yakima Code Administration Division under the 2018 Washington State Building Code (RCW 19.27). A garage-to-ADU conversion that adds a kitchen and separate entrance falls under YMC 15.09.045 ADU rules — 1,000 sq ft max floor area (HB 1337 may raise the cap), matching exterior, and accessory-structure setbacks. Per WA HB 1337 (RCW 36.70A.680), Yakima must allow garage-conversion ADUs without owner-occupancy mandates and without off-street parking replacement within 0.5 mile of major transit.

A tiny home on a permanent foundation in Yakima is treated either as a primary single-family dwelling (must meet YMC 15.03 zoning standards for the zone) or as an Accessory Dwelling Unit under YMC 15.09.045 (1,000 sq ft cap, matching exterior, accessory-structure setbacks). The 2018 Washington State Building Code (RCW 19.27 + WAC 51-50) adopts IRC Appendix Q (Tiny Houses) — allowing reduced ceiling heights, ladder access to lofts, and small-stair geometry. Tiny homes on wheels (THOWs) registered as RVs cannot serve as a permanent residence in residential zones. WA HB 1337 (RCW 36.70A.680) requires Yakima to allow ADU-style tiny homes including detached units.

Yakima YMC 15.05 Table 5-1 places detached residential accessory structures (sheds, detached garages, carports) at typically 5 ft minimum side and rear setbacks in SR, R-1, R-2, and R-3 zones, with no front-yard setback closer than the principal building. The 2018 Washington State Building Code (RCW 19.27) — based on 2018 IBC/IRC — exempts one-story detached residential accessory structures up to 200 sq ft from a building permit, provided no electrical, plumbing, or mechanical systems are added. Sheds over 200 sq ft, or any shed with utilities, require a Yakima Code Administration building permit.

Yakima YMC 15.05 Table 5-1 sets detached carport setbacks at typically 5 ft minimum side and rear in SR, R-1, R-2, and R-3 zones. Attached carports follow the principal-building setbacks for the zone. Construction requires a building permit from the Yakima Code Administration Division under the 2018 Washington State Building Code (RCW 19.27) with engineered anchorage for Yakima Valley wind loads (~90-100 mph) and Seismic Design Category D1. Enclosing a carport with walls converts it to a garage and requires a new permit with fire-separation, garage door, and vehicle barrier per IRC R302.6.

Outdoor burning inside the City of Yakima is governed by the Washington Clean Air Act (RCW 70A.15), DNR forest-burning rules under RCW 76.04, and Yakima Regional Clean Air Agency (YRCAA) rules under WAC 173-425 and WAC 173-430. YRCAA Stage 1 (Yellow) and Stage 2 (Red) calls ban all outdoor burning countywide, expressly including outdoor fireplaces, fire bowls, fire pits, and similar devices. Yakima County also imposes an annual residential outdoor burn ban each summer (June 1 - September 1). Residential land-clearing burning is generally prohibited inside the urban-growth area.

Yakima regulates recreational fires through the 2021 Washington State Fire Code adopted under YMC Chapter 10.05. The state code (IFC Section 307.4.2) limits recreational fires to a fuel area not more than 3 feet in diameter and 2 feet in height, requires a 25-foot setback from any structure or combustible material, and requires the fire to be constantly attended with extinguishing equipment on hand. Yakima Regional Clean Air Agency (YRCAA) burn-stage calls can override these rules and shut down all outdoor burning, including fire pits, on stagnant-air days.

The Yakima Public Tree Ordinance (YMC Chapter 8.77) regulates trees on public property and in the public right-of-way; removal of trees on purely private property is generally not permit-required. However, the City may compel removal of any dead or diseased tree on private property that constitutes a hazard or harbors insects or disease threatening other trees in the city.

Every owner of a tree overhanging a Yakima street or right-of-way must prune branches to maintain at least 8 feet of clearance over the sidewalk or street under YMC Chapter 6.56 (Nuisances) and YMC Chapter 8.77 (Public Tree Ordinance). Commercial tree work on street or park trees requires a Washington state license and a City of Yakima business license.

City of Yakima irrigation service operates April 1 through October 15 under city water rights, with the season subject to shortening during drought. The Yakima River Basin is regulated under RCW 90.03 (Washington State Water Code) and the Yakima Basin Integrated Plan; in October 2025 the WA Department of Ecology ordered the first-ever basin-wide surface water curtailment, and the basin enters water year 2026 in a fourth consecutive drought.