Carlsbad, CA Home Business: Signage Rules (2026)

41) allows a range of permitted sign types and sizes, a residential property running a home occupation gets no signage allowance at all, not even a small nameplate carve-out written into this section. The rule sits alongside the broader requirement in subsection (A)(3) that there be "no exterior evidence of the conduct of a home occupation, including outdoor display of equipment, materials, or supplies," so the sign ban is one piece of a wider mandate that a home business stay invisible from the street. A home occupation must also be conducted entirely within the dwelling or an attached garage (with a sports-tutoring exception), keep no separate business entrance absent a legal requirement, and avoid producing dust, glare, noxious matter, excessive noise or vibration beyond the property line under subsection (A)(11).

Because the sign prohibition is part of the conditions of the accessory use itself under subsection (A), posting a sign does not just risk a sign-code citation, it can jeopardize the underlying home occupation's compliant status and the business license issued under subsection (G).