Building Setbacks & Zoning in Maryland (2026)

Annapolis's R1 single-family zoning district requires a 25-foot front yard, 8-foot interior side yards, 20-foot corner…

Anne Arundel County sets minimum yard setbacks by zoning district under the Article 18 bulk regulations: 25 feet front…

In the county's Density Residential (D.R.) zones, single-family detached dwellings must meet minimum setbacks set in…

Carroll County's Residential Districts run four dimensional tiers under § 158.075.03(B)(1): the R-40,000 District…

Charles County's Zoning Ordinance sets out exactly how front, side and rear yard setbacks are measured and where they…

Gaithersburg's residential zoning tables set minimum front, side and rear setbacks by district: 30/15/30 feet in the…

Harford County is a charter home-rule county that zones its own land, so the Harford County Zoning Code sets real…

In Howard County's common R-20 residential district, principal structures must sit at least 20 feet from the front lot…

In the R-200 residential zone, Montgomery County requires a 40-foot front setback, 12-foot side setbacks (25 feet…

In Prince George's County's RSF-65 zone, the standard single-family subdivision zone, Section 27-4202(e) sets minimum…

Rockville zoning sets minimum yard setbacks for single-unit residential zones, ranging from 25 to 30 feet in front and…

In Washington County, Maryland's Residential, Suburban (RS) zoning district, a single-family dwelling on public water…

Unincorporated Wicomico County measures every building setback against the Schedule of District Regulations in §…

Single-family homes in Annapolis's R1 zoning district are capped at 2.5 stories and 35 feet, but a block-face averaging…

Anne Arundel County caps principal structures in R5 residential zoning at 50 feet, the standard suburban district…

Baltimore County caps residential building height by D.R. zoning classification under BCZR Section 1B02.2.A: 50 feet in…

Carroll County caps principal residential structures at 35 feet in the R-40,000, R-20,000, and R-10,000 Districts, and…

Charles County exempts specific structures, houses of worship, towers, steeples, antennas, roof equipment and…

Gaithersburg caps residential buildings at 3 stories and 38 feet across its R-A, R-90, R-6, RB and R-20 detached-home…

Harford County caps building height in its own zoning code. The R1, R2, and R3 districts limit maximum building height…

In the R-20 residential district, a principal structure (house) may be up to 34 feet tall and an accessory structure up…

Prince George's County limits principal structures in the RSF-65 zone, its standard single-family subdivision zone, to…

Rockville zoning caps single-unit residential building height at 35 feet in the small-lot zones and 40 feet in the…

Washington County, Maryland caps residential building height at forty feet for the principal structure and twenty-five…

In unincorporated Wicomico County, § 225-71 sets the method for measuring building height, from average finished grade…

In the Chesapeake Bay Critical Area of unincorporated Wicomico County, § 125-20H caps man-made impervious surface at…

Within Annapolis's Critical Area Overlay, impervious lot coverage is capped by underlying zoning district: from 50% for…

Anne Arundel County caps building coverage at 50% of lot area in R1 zones, 60% in R2, and 65% in R5: the county-wide…

Baltimore County does not use a single flat lot-coverage percentage. In Density Residential (D.R.) zones, development…

Charles County caps impervious surface on every lot at the impervious surface ratio (ISR) set for that property's zone…

Gaithersburg zoning caps impervious and building lot coverage by district. The low-density R-A zone allows 50%…

Harford County controls how much of a lot may be built on through minimum lot area and yards in Section 267-55. Near…

Howard County's single-family zoning districts do not set a flat maximum lot-coverage percentage. Buildable area is…

The R-200 single-family zone limits total lot coverage to 25% of the lot under Montgomery County's Zoning Ordinance…

Prince George's County's Subtitle 27 Zoning Ordinance caps lot coverage in the RSF-65 zone, the single-family detached…

In Rockville's R-90, R-75, R-60 and R-40 single-unit residential zones, the City's Zoning Ordinance caps building lot…

Washington County's Rural Business (RB) zoning district caps lot coverage at 65 percent under Zoning Ordinance Section…