MD HB1137

Counties with populations over 150,000 must allow multifamily (5+ units) and mixed-use developments as permitted uses on parcels zoned for recreational or commercial use that have water and sewer service, without requiring public hearings, variances, or special permits

Counties cannot impose density limits lower than their highest residential zone density, cannot restrict lot size or coverage, and cannot mandate walls, fences, screening, impervious pavement, or nonpublic open space on these permitted developments

Counties may require up to 20% of floor space be dedicated to retail uses and may require on-site parking, but cannot impose minimum off-street parking requirements except for federal compliance

Private restrictions on property use (in deeds, HOA rules, contracts, etc.) cannot unreasonably limit multifamily or mixed-use development by significantly increasing costs or effectively prohibiting such projects

Historic properties listed in or eligible for the Maryland Register of Historic Properties are exempt from the private restriction provisions; effective date is October 1, 2026