Sammamish, WA Short-Term Rentals: Parking Rules (2026)

No short-term-rental parking ratio appears in the Sammamish Municipal Code, and Washington's RCW 64.37 does not address parking. Guest parking is therefore controlled by the same standards that apply to any residence: the off-street parking and residential development provisions of the city's zoning code (SMC Title 21A), driveway and right-of-way rules, and any neighborhood or homeowners-association restrictions. Sammamish residential lots are designed around household-scale vehicle counts, so a short-term rental is expected to keep guest vehicles on the property's driveway and legal on-street spaces rather than overflowing into the public right-of-way or blocking neighbors. The city's code-compliance program handles complaints about vehicles obstructing streets, sidewalks, or fire access. Because Sammamish has not adopted an STR-specific minimum-spaces requirement, the best practice for hosts is to advertise the actual number of usable on-site spaces, keep guest counts consistent with available parking, and avoid creating congestion that could trigger a nuisance or right-of-way complaint. Operators with private-road or shared-driveway access should also confirm any recorded easement or HOA parking limits, which can be stricter than city code. For specific lot requirements, hosts should consult SMC Title 21A or the Sammamish Permit Center.