Monterey Park, CA Home Business: Signage Rules (2026)

Monterey Park's home occupation rules in § 21.08.040(C)(5) treat any outward sign of a business as incompatible with a residential neighborhood, and the signage ban is one of the strictest items on that list. Subsection (j) bars the use of advertising signs on the premises, or any other external on-site advertising media, that calls attention to the fact that the house is being used for a business purpose. Subsection (n) closes the obvious workaround by barring the residence's street address from appearing in the home occupation's advertisements.

Those two rules sit alongside subsection (m), which forbids altering the structure's appearance, colors, materials, construction, lighting or sound in a way that would make the property read as anything but a residence. Together they mean a home business permitted under § 21.08.040(C) cannot post a yard sign, window sign, banner or vehicle-mounted sign naming the business, and cannot list the home address in flyers, online listings or business cards. The permit itself is issued by the City Planner for uses like office work, mail ordering and home crafts under § 21.08.040(C)(3), and the same office enforces the use limitations through periodic inspection.

A violation is treated the same as any other breach of the use limitations: the City Planner can revoke the permit under § 21.08.040(C)(2)(d), with an appeal available to the Planning Commission under Chapter 1.10.