3 county-level rules, plus city-specific rules for 3 cities in Montgomery County, Maryland.
Verified from official government sources
Montgomery County zoning regulations establish minimum setbacks for residential structures based on zone classification. The R-200 zone, common in suburban areas like Bethesda and Potomac, requires 40-foot front setbacks and 12-foot side setbacks. Setbacks vary significantly by zone.
Montgomery County limits residential building height to 35 feet in most single-family zones under the zoning ordinance Chapter 59. Height is measured from the average finished grade to the highest point of the roof. Some commercial and mixed-use zones allow greater heights.
Montgomery County limits lot coverage (the percentage of a lot covered by buildings and impervious surfaces) based on the zoning classification. In the R-200 zone, lot coverage is capped at 25 percent. Higher-density zones allow greater coverage, and environmental regulations add further restrictions.
3 cities in Montgomery County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
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Montgomery County Ordinance Hub →