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SB 891

Land Use and Real Property - Accessory Dwelling Units - Requirements and Prohibitions

2025 Regular Session Introduced by Cheryl Kagan and 1 co-sponsor

Maryland law now requires municipalities to permit accessory dwelling units in residential zones, expanding housing options while limiting local zoning restrictions on secondary dwellings.

Approved by the Governor - Chapter 196
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Bill Summary · SB 891

Legislative bill overview

SB 891 modifies Maryland's regulations on Accessory Dwelling Units (ADUs) by establishing statewide requirements and limiting local prohibitions. The bill became law in April 2025 after gubernatorial approval, indicating it successfully passed both legislative chambers and executive review.

Why is this important

ADU policy directly affects housing affordability and supply in Maryland communities. This legislation forces municipalities to allow ADUs in certain contexts, potentially increasing rental options and property owner income while addressing the state's housing shortage—though implementation varies by jurisdiction.

Potential points of contention

  • Local control vs. state mandate: Cities and counties may resist state-imposed ADU requirements that override local zoning preferences and community planning decisions
  • Neighborhood character concerns: Residents in single-family areas may worry about density increases, parking pressure, and changes to neighborhood aesthetics and school capacity
  • Implementation burden: Municipalities must revise zoning codes and permitting processes, creating administrative costs and compliance challenges across different local contexts

Compiled from official sources — confirm details with the bill’s official record.

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