Douglas County, CO Home Business: Signage Rules (2026)

Part 23 of the Zoning Resolution treats signage as one of the bright-line criteria separating an acceptable home occupation from a use that has outgrown its residential setting. Section 1-2303(5) governs Class 1 home occupations, permitted outright in any residential or agricultural district, and § 1-2305(5) applies the identical restriction to Class 2 home occupations, which require an administrative permit in the A-1, LRR and RR districts. Both sections state flatly that there shall be no exterior advertising of the home occupation, with no exception for a small nameplate, a temporary open-house sign, or a vehicle-mounted sign parked at the curb.

The prohibition sits alongside the rest of the Part 23 criteria, no exterior storage of materials or equipment, no offensive noise, dust or odor beyond the lot line, and no traffic that changes the neighborhood's residential character, all aimed at keeping a home business invisible from the street. This is stricter than the sign allowance the County gives a permitted entertainment event under Part 22B, which can post one banner for two weeks or a 32-square-foot temporary sign; home occupations get no comparable allowance at all.

A resident who posts a sign advertising a home business risks having Planning Services treat the home occupation as noncompliant with §§ 1-2303 or 1-2305, which can lead to denial or revocation of a Class 2 permit or an enforcement action against an unpermitted Class 1 use.