Mason County, WA Parking Rules: Commercial & Oversized Vehicles (2026)
Key Facts
- Governing section
- MCC § 17.14.170, Allyn UGA off-street parking chapter
- General rule
- Commercial vehicles barred from residential zones
- Exception 1
- Vehicle tied to a home occupation/cottage industry SUP (17.03.021)
- Exception 2
- Time needed for legitimate deliveries or pickups only
- Enforcement
- Civil fines up to $1,000/day, MCC 15.13.050
Summary
In the Allyn Urban Growth Area of unincorporated Mason County, commercial vehicles cannot be parked or stored in residential zones except briefly for legitimate deliveries or pickups, unless the vehicle is tied to a home-based occupation or cottage industry special use permit issued under the county's development regulations.
Commercial vehicles, other than those allowed through a home-based occupation or cottage industry special use permit issued per Section 17.03.021 (Mason County Development Regulations), may not be parked or stored in residential zones except that for the period of time required to make legitimate service deliveries or pick-ups.
Full Breakdown
Mason County Code Section 17.14.170 bars parking or storage of commercial vehicles in Allyn UGA residential zones, with two narrow paths around the ban. First, a commercial vehicle is exempt if it is allowed through a home-based occupation or cottage industry special use permit issued under Section 17.03.021 of the Mason County Development Regulations, meaning a homeowner running a permitted home business can keep a work vehicle tied to that specific approval. Second, the section allows commercial vehicles in residential zones for only as long as it takes to complete a legitimate service delivery or pickup, a driveway drop-off or a moving truck loading, not overnight or long-term storage.
The rule sits in Chapter 17.14, the Allyn UGA's off-street parking chapter, immediately after the RV and boat parking standard in Section 17.14.160, and both are administered by the Mason County Department of Community Development. Because the exemption is tied to a specific home-occupation permit rather than a general size or weight threshold, a contractor's truck, box van or similar commercial vehicle parked overnight in an Allyn residential zone without that underlying permit is out of compliance regardless of how briefly it has been there beyond a delivery window.
Residents seeking to keep a commercial vehicle at home should pursue the home-based occupation or cottage industry special use permit process rather than assume incidental parking is allowed.
Violations & Fines
Parking or storing a commercial vehicle in an Allyn UGA residential zone without a qualifying home occupation permit, beyond the time needed for a delivery or pickup, violates MCC 17.14.170 and is enforceable under Chapter 15.13: a warning notice, then a notice of civil violation, hearing examiner review, and civil fines of up to $1,000 per day of continuing violation under MCC 15.13.050.
Frequently Asked Questions
Can I park my work truck at my house overnight in Allyn?
How long can a delivery truck sit in front of my house?
What if I run a home business that needs a company vehicle?
Sources & Official References
Other rules in Mason County
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