Sammamish home businesses may have one sign — freestanding, wall, monument, or A-frame — with a maximum area of 6 square feet, under SMC 21A.45.060. A Sign Permit Application is required. The single-sign, 6-square-foot limit keeps home-business signage consistent with residential neighborhood character.
Per the City's Home Business Guide and SMC 21A.45.060, a home business in Sammamish is allowed one sign, which may be freestanding, wall-mounted, monument, or A-frame style. The maximum sign area allowed is 6 square feet. All applicants must submit a Sign Permit Application form before installing the sign. This single, small-sign allowance reflects the home occupation rules' core purpose under SMC 21A.65.050: to minimize the impact of commercial activity in residential neighborhoods and preserve neighborhood character. Because a Type 1 home business must not produce obvious visible business activity outside the building, signage is deliberately limited so the home remains indistinguishable from surrounding residences. Signage that exceeds the 6-square-foot limit, uses more than one sign, or is installed without the required sign permit would not comply. The broader sign code (SMC 21A.45) governs sign types, placement, illumination and permitting citywide; the home-business provision is the residential-scale carve-out within it.
Installing more than one sign, a sign larger than 6 square feet, or any home-business sign without an approved Sign Permit Application violates SMC 21A.45.060 and the home occupation standards. Enforcement can include removal orders and code-enforcement penalties under the Sammamish Development Code.
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