Sign Regulations in Mountain View, CA (2026)
3 verified sign regulations for Mountain View, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Political Signs
Mountain View allows political signs on private residential property without a permit. Size, placement, and timing rules must follow the content-neutral sign ordinance and First Amendment protections.
Political Signs in Mountain View
Some RestrictionsCal. Civ. Code § 4710 (HOA noncommercial sign protection)
4710. (a) The governing documents may not prohibit posting or displaying of noncommercial signs, posters, flags, or banners on or in a member’s separate interest, except as required for the protection of public health or safety or if the posting or display would violate a local, state, or federal law. (b) For purposes of this section, a noncommercial sign, poster, flag, or banner may be made ...
Window Signs
Ground-floor businesses in Mountain View may cover at most 25 percent of their street-facing window glass with a window sign, or one square foot per linear foot of occupancy frontage, whichever is less, under City Code Sec. 36.36.15(j). Only one window sign is allowed per window pane, letters cannot exceed 12 inches, and most window signs must be nonilluminated.
Mountain View Window Sign Coverage Limits
Some RestrictionsMountain View, CA, City Code Sec. 36.36.15(j) (Window Signs)
j.Window signs.1.Commercial uses with ground floor frontage may have window signs in addition to otherwise permitted building mounted or freestanding signs. A maximum of one (1) window sign is permitted per window pane or framed window area on the ground floor and shall not occupy more than twenty-five (25) percent of the total transparent glass area of those windows parallel to the street on t...
Freeway-Facing Signs
Mountain View bans any sign designed or maintained primarily to be viewed from a freeway under City Code Sec. 3.18.2, and any sign proposed within 600 feet of a freeway's right-of-way is presumed to be freeway-oriented unless proven otherwise. Signs that also create a traffic hazard to freeway users are separately prohibited outright, regardless of distance.
Mountain View Freeway-Facing Sign Ban
Heavy RestrictionsMountain View, CA, City Code Sec. 3.18.2 (Prohibited Signs Adjacent to Freeways - Exhibiting Advertising to Freeway Users)
No sign shall be painted, attached, installed, erected, constructed or relocated in the city which is visible from a freeway if such sign is designed to have or has advertising thereupon maintained primarily to be viewed from the freeway. When any sign is intended to be located within six hundred (600) feet from the edge of the right-of-way of the designated freeway so that the advertising ther...
Looking for Santa Clara County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Mountain View city rules.
Sign Regulations in Santa Clara County →