Home Business in Montgomery County, MD (2026)

Montgomery County Code, Ch. 59 (Zoning Ordinance), § 59.3.3.3.H

Home Occupation means any occupation that provides a service or product and is conducted within a dwelling unit by a resident of the dwelling unit. ... The maximum amount of floor area used for the Home Occupation must not exceed 33% of the total eligible area of the dwelling unit and any existing accessory building on the same lot, or 1,500 square feet, whichever is less.

Montgomery County Code, Ch. 59 (Zoning Ordinance), § 59.3.3.3.H.4.b.i

The maximum number of visits is 20 per week, and no more than 5 per day (excluding deliveries and the arrival and departure of any non-resident employee) for all Home Occupations on-site. In R-90 and R-60 zones, a maximum of 2 vehicles visiting the Home Occupation (Low Impact) may be parked on the lot at the same time.

Montgomery County Code, Ch. 59 (Zoning Ordinance), § 3.4.4.C

Family Day Care (Up to 12 Persons) means a Day Care Facility for a maximum of 12 people in a dwelling where for child day care the registrant is the provider and a resident, or the registrant is not a resident but more than half the children cared for are residents. The provider's own children under the age of 6 are counted toward the maximum number of people allowed. For care of senior adults ...