Home Business in Kirkland, WA

If you live in Kirkland or are thinking about moving there, home business are one of those things you probably won't think about until they affect you directly. Kirkland has 5 specific rules on the books covering different aspects of home business, and some of them might surprise you.

Cottage Food Operations

Home-based food production in Kirkland needs a WSDA Cottage Food Operations permit under RCW 69.22, with sales capped at 25,000 dollars and approved non-hazardous foods only.

Key details: Permit: WSDA Cottage Food. Sales Cap: 25,000 per year. Allowed Foods: Non-potentially hazardous. Prohibited: Dairy, meat, canned veggies. Local Req: Kirkland business license + KZC 115.35.

Operating without a WSDA permit is a violation of RCW 69.22; selling prohibited potentially hazardous foods can trigger state enforcement; local violations via KZC and business license rules.

Customer Traffic Restrictions

Kirkland caps a home-based business at six client or customer visits per day and no more than two visitors on site at once, under KZC 115.65(4)(g). Visits are restricted to the hours of 8:00 a.m. to 8:00 p.m., and a family arriving in one vehicle counts as a single client.

Key details: Max clients per day: 6. Max clients at one time: 2. Permitted visit hours: 8:00 a.m. - 8:00 p.m.. Family in one vehicle: counts as 1 client. Bed and breakfast: exempt from this cap.

Exceeding the six-visit daily cap or the two-clients-at-once limit, or hosting client visits outside 8:00 a.m. to 8:00 p.m., is a home occupation violation enforced under Chapter 1.12 KMC. The City can issue a notice and order of civil violation, with fines starting at $100 per day and escalating to $500 per day past 30 days of noncompliance, and can revoke the underlying home occupation approval.

Zoning & Home Occupation Permits

Kirkland allows a home occupation as an accessory use in a single-family home, multifamily unit or Accessory Dwelling Unit, provided the operator lives on site and holds a City business license, under KZC 115.65. The use must stay incidental to residential life and meet a detailed list of size, traffic, storage and vehicle standards.

Key details: Allowed in: single-family, multifamily, ADU as accessory use. Residency requirement: must be operator's principal residence. License: City business license required. Max floor area: 500 sq ft, incl. accessory structure. Outside business participants: max 2 per day.

Operating a home occupation without the required City business license, or exceeding the standards in KZC 115.65(4) without an approved Process I exception, is a zoning violation. The City enforces under Chapter 1.12 KMC with a notice and order of civil violation, escalating daily fines of $100 to $500, and may require the use to cease until it is brought into compliance or separately permitted.

Signage Rules

A Kirkland home occupation may display only one building-mounted, non-illuminated sign of up to two square feet, under KZC 115.65(4)(i). No other exterior sign of any kind is allowed, keeping a home-based business visually indistinguishable from a residence.

Key details: Signs allowed: 1 building-mounted sign only. Max sign size: 2 square feet. Illumination: not permitted. Other sign types: freestanding, window, banner signs barred. Enforcement: Ch. 1.12 KMC civil fines.

Installing more than one sign, an illuminated sign, or a sign larger than two square feet at a home occupation violates KZC 115.65(4)(i) and is enforced under Chapter 1.12 KMC. The City may issue a notice and order of civil violation requiring the sign's removal, with civil fines starting at $100 per day of noncompliance and rising to $500 per day after 30 days.

Home Daycare

Family daycare homes serving 12 or fewer children are allowed as a home occupation in Kirkland residential zones, subject to KZC 115.42 standards and Washington DCYF licensing under RCW 43.216.

Key details: Max children: 12 under state license. State agency: DCYF under RCW 43.216. Zoning permit: Allowed home occupation. Fence height: 48 inches minimum outdoor. City license: Required via FileLocal.

The Bottom Line

Kirkland's home business rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Kirkland is broadly strict or permissive.

These rules come from Kirkland's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.