Simi Valley Commercial Vehicle Restrictions Rules (2026): What You Need to Know

Simi Valley Municipal Code Section 4-9.402 establishes size-based restrictions on parking commercial and oversized vehicles in the city. Any vehicle exceeding 23 feet in length, 7 feet in width, or 8 feet in height is prohibited from parking on any city street. This threshold captures most commercial vehicles including large delivery trucks, tractor-trailers, box trucks, and heavy construction equipment. The purpose of the restriction is to preserve sight lines, prevent pavement damage from heavy axle loads, and maintain the residential character of neighborhoods.

Short-term parking directly related to active loading or unloading of goods is generally allowed during reasonable business hours, provided the vehicle does not obstruct traffic or create a hazard. However, leaving a commercial vehicle parked overnight in a residential area — even in front of the operator's own residence — constitutes a violation. Contractors and tradespeople who regularly work in Simi Valley neighborhoods are expected to return their commercial vehicles to a commercial storage yard or non-residential property at the end of each work day.

Residents or businesses that require a temporary exception for a specific short-term need — such as delivery of equipment, a construction project, or a moving operation — may contact the SVPD Traffic Bureau at (805) 583-6921 to request a temporary oversized vehicle permit. These permits are granted on a case-by-case basis with at least two business days advance notice. Vehicles found in violation may be cited and, if blocking traffic or posing a safety hazard, may be towed at the owner's expense.