Renton, WA Fence Regulations: Fence Permit Requirements (2026)

RMC 4-4-040(B)(5)(a) sets the bright-line rule: a fence over six feet tall needs either a building permit or a written exemption issued by the Building Official before it goes up. Below that height, ordinary fences within the standard setback limits do not need a permit under this section, though retaining walls and hedges are covered by separate height and permit rules in the same chapter. For owners whose lot has special circumstances, such as a corner lot or multiple street frontages, RMC 4-4-040(G)(1) allows an application for a special administrative fence permit to modify the residential setback height limits or the height exception criteria for secondary front and rear yards abutting a street.

That application must include a letter of justification, a site plan, a typical elevation, and the current permit fee, and City staff evaluate it against criteria in subsection G(2), including whether the fence is out of character with the neighborhood, whether it creates a hazard to traffic, and whether it is necessary due to the lot's special circumstances. Fences or hedges proposed above 72 inches anywhere in a residential zone, or above the commercial/industrial limits, require a variance instead of the administrative permit. Regardless of permit type, no part of a fence in the clear vision area at an intersection may exceed 42 inches.