ADU rules for Delmar
Accessory Dwelling Unit (ADU) Rules for Delmar, MD
Is your property eligible for an ADU?
# of Properties
1,415
Owner-occupied
69%
Zoning districts
9
Avg Home Value
$226,383
Median Lot Size
0.20 acres
Avg Income
$89,241
Residential Types:
1,415 housing units
Apts (4+ units)
1%
Other
99%
Zoning Districts:
1,606 parcels · 9 districts
R-2
63%(1,013)
R-1
30%(483)
CO-B
5%(73)
UK
1%(17)
Other
1%(20)
ADU Rules
What can you build in Delmar, MD?
Delmar, MD follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Owner Occupancy
- –There is no owner-occupancy requirement for ADUs.
Parking
- –No ADU-specific parking standards; general rule requires 2 off-street spaces per residential lot, with 1 additional off-street space within 150 ft if adjacent on-street parking is prohibited; apartment parking standards apply only to apartments, not ADUs.
ADU State Law
What can you build in Maryland?
- –Local-law mandate: By Oct 1, 2026, each legislative body must adopt a local law authorizing ADUs under this section.
- –Local zoning mostly remains: The subtitle generally does not alter local zoning power except as provided, but locals must establish policies that further the subtitle's intent.
- –Definition-based size cap: An ADU must be ≤ 75% of the size of the primary SF detached dwelling and subordinate in use; ADUs may be detached or attached.
- –Density/growth limits: ADUs must be excluded from density calculations and from measures limiting residential growth that pertain to the lot/parcel/tract.
- –Setbacks: Local law cannot set side/rear setbacks that exceed existing accessory-structure setbacks.
- –Parking: If a jurisdiction adds off-street parking requirements, it must consider specified factors and provide a waiver process, and must complete a parking study before adopting such requirements.
- –Alley access option: Local law may prohibit converting an accessory structure to an ADU if only vehicular access is from an alley.
- –Codes/adequate facilities: Local law must provide for ADU construction meeting public health/safety/welfare standards, including building codes and adequate public facilities provisions.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Maryland municipalities
Rules change at the town line. Check the municipality your property is actually in.
Wicomico County