

ADUs are allowed in MonroeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Monroe, NC
Is your property eligible for an ADU?
# of Properties
13,613
Owner-occupied
61%
Zoning districts
30
Avg Home Value
$366,209
Median Lot Size
0.33 acres
Avg Income
$78,875
Residential Types:
13,613 housing units
Residential
100%
Zoning Districts:
16,412 parcels · 30 districts
RMD
33%(5,390)
RLD
24%(3,866)
CD
22%(3,635)
RR
4%(668)
Other
17%(2,853)
ADU Rules
What can you build in Monroe, NC?
Monroe, NC follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Detached ADU Size Limits
- –CA-O overlay: Maximum detached ADU floor area is 50% of the principal structure's floor area.
- –Citywide: Maximum detached ADU size cannot exceed the principal structure's heated square footage (total for accessory uses).
Parking
- –1 space/ADU; max not specified. CA-O requires adequate off-street parking per Table 6.2.2.3; on-street credit limited to non-residential/mixed-use; shared parking allowed with a recorded agreement; off-site parking within 1,000 ft in sub-districts B, C, or D; unlisted uses may have an alternative off-street standard.
Rental Restrictions
- –Short-term rentals are not allowed as a residential use; tenancy of one week or less is considered transient lodging (commercial) and not permitted for ADUs in residential districts.
ADU State Law
What can you build in North Carolina?
- –North Carolina does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
- –There is active proposed legislation (H627 / S495, "Regulation of Accessory Dwelling Units") that would create G.S. 160D-917 and require local governments to allow at least one ADU in certain single-family areas, but it is not enacted.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other North Carolina municipalities
Rules change at the town line. Check the municipality your property is actually in.
Union County