Carroll County, MD Home Business: Customer Traffic Restrictions (2026)

Home-based businesses in Carroll County residential districts are governed as an accessory use under § 158.075.02(A)(9), which requires Zoning Administrator approval based on a signed affidavit rather than a full permit hearing. That affidavit has to affirmatively state four things: the home occupation uses no more than 500 square feet of the dwelling, it does not involve retail sales from the premises, it leaves no exterior evidence that the home is used for anything but residential purposes beyond a sign no larger than three square feet, and, the strictest limit, that it 'involves no customers to the dwelling.' That last condition means client visits, walk-in appointments, or any face-to-face business traffic at the residence are not allowed under this affidavit track; a business that needs customers to physically come to the home does not qualify as this kind of home occupation.

The identical four-part affidavit, including the same zero-customer condition, applies to home occupations in the Agricultural District under § 158.071.02(A)(2), so a farm-based home business faces the same customer-traffic ban as one in a subdivision. Businesses that do need customer visits, such as a hair salon or tutoring service, would instead have to qualify under a different accessory-use category with its own standards, such as the professional-office allowance in § 158.075.02(A)(12) for a single physician, insurance agent, or realtor, which is subject to the separate performance standards in § 158.130(G) rather than the no-customer home occupation affidavit.