Sign Regulations in Issaquah, WA (2026)
6 verified sign regulations for Issaquah, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Political Signs
Issaquah treats political signs as temporary noncommercial signs under Land Use Code 18.612.120. The City does not regulate their content and requires no sign permit, temporary sign agreement or fee. Signs cannot be electric, illuminated or animated, must stay portable, and can reach no higher than 65 feet above grade.
Issaquah Political Sign Rules: Temporary Noncommercial Signs
Some RestrictionsIssaquah Land Use Code § 18.612.120(B)
B. General Standards for Temporary Noncommercial Signs. Noncommercial speech signs express noncommercial messages such as public/community events, religious, political, ideological, or other philosophical messages. Noncommercial speech signs do not promote commercial businesses, projects, or services. The content of such signs is not regulated but the sign is subject to any time, place, or mann...
Garage Sale Signs
In Issaquah, garage sale signs must be stake or wire frame signs, with a 4 square foot face, 2 faces and a 4 foot height at most. Each sale gets up to 4 signs in the right-of-way in zones that include a residential use. Signs stay up three days at most, and no temporary sign agreement is required.
Issaquah Garage Sale Sign Rules: Size, Number and Duration
Some RestrictionsIssaquah Land Use Code § 18.612.110(G)
G. Garage Sale Signs. ... A garage sale sign is a temporary sign advertising the sale of personal property used to dispose of personal household possessions and including sample sales. It is not for the use of any commercial venture. Garage sale signs are also known as yard sale, moving sale, or patio sale signs. ... 2. Garage sale signs are allowed as specified in Table 18.612.110(G)(2). ... a...
Holiday Displays
Issaquah exempts temporary holiday and festival lighting from its outdoor lighting chapter only when each lamp is under 70 lumens, the lights comply with dark sky hours, and the display stays up no more than 60 days before it is completely removed for at least 30 days. Building outlines are limited to individual white bulbs.
Issaquah Holiday Lighting Display Duration Limits
Some RestrictionsIssaquah Land Use Code § 18.610.040(A)(8)
8. Temporary seasonal/festival lighting; provided, that individual lamps are less than 70 lumens and that comply with dark sky hours. Seasonal/festival lighting is defined as temporary lighting installed and operated in connection with holidays or festivals for periods not to exceed 60 days, completely removed and not operated again for at least 30 days. Buildings may be outlined as part of th...
Digital Billboards
Issaquah prohibits billboard signs outright, and the same prohibited-sign list in LUC 18.612.050 bans digital or moving signs and electronic readerboards. The only carve-outs are approved reader boards in community facilities zones, manual readerboards on marquee signs, and legal nonconforming readerboards already in place.
Issaquah Billboard and Digital Sign Rules
Heavy RestrictionsIssaquah Land Use Code § 18.612.050(A), (C), (D), (S)
A. Except when provided for in this chapter, no person may erect, alter, maintain, or relocate any of the following signs or sign features in the City and such existing signs must be removed consistent with IMC 18.612.170(H) , Removal of Signs. Violators may be subject to the penalty provisions in Chapter 8.45 IMC, Enforcement. ... C. Animated signs. Digital or moving signs except approved read...
Window Signs
In Issaquah, all window signs on a façade combined cannot cover more than 25 percent of the total window area, and graphics, artwork, photos and decorations can add another 25 percent, for a total of 50 percent. Empty, unoccupied or under-construction spaces are the exception. LUC 18.612.090(E)(7) sets the rule.
Issaquah Window Sign Coverage Limits
Some RestrictionsIssaquah Land Use Code § 18.612.090(E)(7)
7. Other Requirements for and Information Related Only to Window Signs. a. Maximum Number. (1) The combination of all window signs (temporary, permanent, primary, secondary, additional) shall not exceed 25 percent of the total window area on any façade. The combination of all graphics, artwork, photos, and decorations shall not exceed an additional 25 percent, for a total of 50 percent of the ...
Freeway-Facing Signs
In Issaquah, a building or business adjacent to I-90 gets no permanent signage on the building elevation parallel to the freeway. A wall sign on a perpendicular elevation is capped at letters two feet tall, 15 feet of length and 30 square feet of total sign area. The limits sit in LUC 18.612.080(D) and are applied by the Director.
Issaquah I-90 Facing Sign Restrictions
Significant RestrictionsIssaquah Land Use Code § 18.612.080(D)
D. Sign Restrictions for Permanent Signs Adjacent to I-90. 1. Applicability of Restrictions. Restrictions apply to a building or business adjacent to I-90 except: a. Where a street is located between I-90 and the property on which a building or business is established, such as SE 62nd Street; b. Where the parallel building elevation to the freeway (including on-ramps and off-ramps) is determine...
Looking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Issaquah city rules.
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