Building Setbacks & Zoning in Montgomery County, MD (2026)
2 county-level rules, plus city-specific rules for 2 cities in Montgomery County, Maryland.
Verified from official government sources
Setback Rules
In the R-200 residential zone, Montgomery County requires a 40-foot front setback, 12-foot side setbacks (25 feet combined), and a 30-foot rear setback for the principal building.
Montgomery County R-200 Setback Minimums
Some RestrictionsMontgomery County Code, Ch. 59 (Zoning Ordinance), § 4.4.7.B.2 (R-200 Zone, Placement)
Principal Building Setbacks (min) Front setback 40' Side street setback, abutting lot fronts on the side street and is in a 40' Residential Detached zone Side street setback, abutting lot does not front on the side street or is not 15' in a Residential Detached zone Side setback 12' Sum of side setbacks 25' Rear setback ...
Lot Coverage Limits
The R-200 single-family zone limits total lot coverage to 25% of the lot under Montgomery County's Zoning Ordinance, covering principal buildings, garages, sheds, pools, and other accessory structures combined.
Montgomery County R-200 Zone Lot Coverage Cap
Some RestrictionsMontgomery County Code, Ch. 59 (Zoning Ordinance), § 59.4.4.7.B
Section 4.4.7. Residential - 200 Zone (R-200) ... B. R-200 Zone, Standard Method Development Standards ... Coverage (max) Lot 25%
Building Setbacks & Zoning by City in Montgomery County
2 cities in Montgomery County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
All Montgomery County ordinances
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