Baltimore's zoning code limits lot coverage (the percentage of a lot covered by structures) based on zoning district, with dense urban and rowhouse areas allowing higher coverage than detached residential zones.
Lot coverage limits restrict the percentage of a lot that can be covered by buildings and structures. In Baltimore's rowhouse districts, lot coverage may be as high as 80-100% given the traditional urban building pattern. Detached residential districts typically limit coverage to 30-50%. Commercial districts may allow 80-100% coverage. The zoning code also addresses open space requirements that complement lot coverage limits. Accessory structures count toward total lot coverage. Impervious surface coverage may be separately regulated for stormwater management purposes. The Transform Baltimore zoning code provides specific coverage limits for each district.
Exceeding lot coverage limits requires a variance from BMZA. Construction that exceeds coverage without approval may result in stop-work orders and requirement to reduce building footprint.
Baltimore, MD
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See how Baltimore's lot coverage limits rules stack up against other locations.
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