Preston’s current zoning code allows ADUs by special exception in its Village Overlay / Redevelopment areas, capped at 50% of the principal structure and 1,500 sq ft. That 50% limit now conflicts with Maryland’s 2026 75% ADU standard. See what homeowners should verify before applying.
Federalsburg’s current code expressly regulates ADUs in the Chesapeake Bay Critical Area, including a 100-foot / 900-sq-ft RCA standard, but its general zoning code does not surface a clear townwide ADU category. See what homeowners should verify under Maryland’s 2026 ADU law.
Greensboro’s published zoning ordinance contains two different accessory-apartment standards: one uses a 33%/800-sq-ft cap and four parking spaces, while another uses 500 sq ft, internal conversion only, owner occupancy and no extra parking. See what homeowners should verify under Maryland’s 2026 ADU law.
Betterton has a 2025 zoning ordinance and a new 2026 Comprehensive Plan, but we did not find a separately posted final HB 1466 ADU ordinance in the Town’s current public library. See what homeowners can verify now, including Critical Area, permits, water/sewer and the October 1 state deadline.
Chestertown allows attached and detached ADUs in R-3 through R-6, but its March 2026 zoning code still uses a 50% / 2,000-sq-ft formula, one-bedroom cap, two-family lot-area threshold and owner-occupancy rule. See what homeowners should verify before applying under Maryland’s 2026 ADU framework.
Millington’s July 2025 zoning amendment allows internal, attached, detached and accessory-building ADUs, but its 60% / 1,000-sq-ft maximum is more restrictive than Maryland’s 2026 75% standard. See what applies now and what homeowners should verify.
Galena has posted Proposed Unsigned Ordinance 2026-09 for accessory dwelling units, while its existing zoning ordinance already includes an accessory-apartment category. See what is confirmed now, what remains proposed, and what homeowners should verify before planning an ADU.
Burkittsville announced passage of a new ADU ordinance on September 15, 2026. See what is confirmed, what the public ordinance viewer does not yet make easy to verify, and the septic, historic and permit checks homeowners should complete before planning an ADU.
Port Deposit already regulates ADUs in ST, RM and CCD districts, but its 30% legacy size cap conflicts with Maryland’s 2026 ADU standard. See the Town rules, historic review, Critical Area limits and permit path to verify before building.
Perryville’s current zoning ordinance still defines an accessory apartment at 25% of the primary building or 750 sq ft, while Maryland’s 2026 ADU framework requires a less restrictive size standard. See what homeowners should verify before applying.
