Renton, WA Home Business: Zoning & Home Occupation Permits (2026)

Under Renton Municipal Code 4-9-090, a home occupation is any commercial use conducted entirely within a dwelling or accessory building by a resident of that unit that stays incidental and secondary to the home's residential use. The business owner must hold the primary residence on the property and submit a complete business license application to the Finance Department, which refers it to the Community and Economic Development Administrator for review against this section's standards. The operation cannot exceed 25% of the gross floor area of the residence, and in no case more than 500 square feet; existing detached garages may be used if parking requirements for the zone are still met, and accessory buildings used for the business are capped at 1,000 square feet or the size of the primary residence, whichever is less.

Outdoor storage or display of goods and equipment is prohibited except for domestic animals or pets used in the business, and the code bars kennels or pet daycare, auto repair, and businesses dispensing regulated substances outright. Exterior signage is limited to one nonelectric, nonilluminated sign no larger than 2 square feet, flush to the building wall. If a proposed home occupation cannot meet all of the standard requirements in subsection F4, the applicant must instead obtain a Special Home Occupation Permit from the Administrator, which can carry conditions on hours, setbacks, screening or soundproofing and expires after one year if no business license is obtained, though a one-year extension is available on written request filed at least 30 days before expiration.