

ADUs are allowed in Port RoyalTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Port Royal, SC
Is your property eligible for an ADU?
# of Properties
3,483
Owner-occupied
67%
Zoning districts
22
Avg Home Value
$463,209
Median Lot Size
0.18 acres
Avg Income
$77,983
Residential Types:
3,483 housing units
Single Family
73%
Apts (4+ units)
12%
Condos
1%
Other
15%
Zoning Districts:
4,122 parcels · 22 districts
T4NC
36%(1,493)
T3N
20%(809)
PUD
18%(741)
T3SN
8%(312)
Other
19%(767)
ADU Rules
What can you build in Port Royal, SC?
Port Royal, SC 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
- –Maximum detached ADU footprint based on 36 ft width and 30 ft depth is 1,080 sq ft.
- –Detached ADU footprint must not exceed the main building footprint.
Parking
- –1 on-site/off-street space per ADU (in addition to primary dwelling); no fixed ADU max (townwide max = 140% of min); on-street spaces cannot be counted toward ADU requirements; reductions up to 20% within 1/4 mile of transit or via an approved parking study; tandem space may satisfy for one unit
Rental Restrictions
- –Short-term rentals no more than 29 consecutive nights; B&B use allowed with max 5 guest rooms and on-site owner/manager.
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 South Carolina municipalities
Rules change at the town line. Check the municipality your property is actually in.
Beaufort County