Accessory Structures in Raleigh, NC: What Residents Actually Need to Know
If you live in Raleigh or are thinking about moving there, accessory structures are one of those things you probably won't think about until they affect you directly. Raleigh has 9 specific rules on the books covering different aspects of accessory structures, and some of them might surprise you.
Tiny Homes
Raleigh permits tiny homes on permanent foundations as ADUs under UDO 2.5.1 (up to 1,000 square feet) or as principal dwellings on any conforming lot, and tiny homes on wheels (THOWs) are treated as RVs and may not be occupied long-term outside of a licensed RV park. A minimum 150 square feet of habitable floor area is required, and the structure must meet NC Residential Code Appendix Q for tiny houses.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [Raleigh code enforcement](https://www.ncosfm.gov/engineering-codes) directly for current fines, enforcement procedures, and hearing options.
ADU Rules
Raleigh allows accessory dwelling units (ADUs) by-right in all residential zoning districts under UDO Section 2.5.1, making it one of the most permissive ADU regimes in North Carolina. Detached and attached ADUs up to 1,000 square feet or 50 percent of the primary dwelling (whichever is less) are permitted without a special use permit. Short-term rental of ADUs is prohibited; they must serve long-term occupancy only.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [Raleigh code enforcement](https://cityofraleigh0drupal.blob.core.usgovcloudapi.net/drupal-prod/COR22/UDO.pdf) directly for current fines, enforcement procedures, and hearing options.
If you are coming from a city with tighter rules, you will find Raleigh gives residents more flexibility on adu rules.
Shed Rules
Sheds 12 feet by 12 feet (144 square feet) or smaller do not require a building permit in Raleigh, but all sheds regardless of size must comply with UDO setbacks: 5 feet from side and rear property lines, and placement in rear or interior side yards only. Sheds larger than 12x12 require a building permit and must meet the NC Residential Code for anchoring and wind load (115 mph basic wind speed for Wake County).
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [Raleigh code enforcement](https://user.govoutreach.com/raleighnc/faq.php?cid=14085) directly for current fines, enforcement procedures, and hearing options.
If you are coming from a city with tighter rules, you will find Raleigh gives residents more flexibility on shed rules.
Carport Rules
Carports in Raleigh require a building permit regardless of size and must sit in rear or side yards with 5-foot setbacks; attached carports extending from a house must meet principal-structure setbacks (typically 10 feet side, 20 feet front). Metal and fabric carports are regulated identically to permanent wood structures, and freestanding carports are banned in front yards across all residential zones.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [Raleigh code enforcement](https://cityofraleigh0drupal.blob.core.usgovcloudapi.net/drupal-prod/COR22/UDO.pdf) directly for current fines, enforcement procedures, and hearing options.
Garage Conversions
Converting a garage to living space in Raleigh requires a building permit, mechanical and electrical upgrades, and usually qualifies as either additional heated floor area of the main dwelling or a detached ADU under UDO 2.5.1. The converted space must meet egress, insulation, and ceiling-height requirements of the NC Residential Code, and lost off-street parking must be replaced on-site in most zoning districts.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [Raleigh code enforcement](https://raleighnc.gov/permits) directly for current fines, enforcement procedures, and hearing options.
ADU Impact Fees
Raleigh does not impose development impact fees on ADUs, but standard building permit, plan review, and water and sewer connection fees apply through the Development Services Department and Raleigh Water utility under their published fee schedules.
Key details: Impact Fees: Prohibited by NC law. SDF Authority: NC Gen. Stat. 162A-205. ADU on Shared Meter: No new SDF. Separate Meter: Optional. School Fees: None.
If Development Services or Raleigh Water improperly assesses a System Development Fee, the applicant may appeal to the Public Utilities Director. After-the-fact permits carry doubled fees under the city fee schedule.
ADU Owner Occupancy
Raleigh removed its prior owner-occupancy requirement for accessory dwelling units in the 2020 UDO update. UDO Section 6.7 currently does not impose an owner-occupancy mandate on ADUs.
Key details: Owner-Occupancy Required: No (removed 2020). Code Section: UDO 6.7. State Preemption: None (NC). Separate Parcel: Not allowed. STR Rules: UDO 6.7.A.5 applies.
There is no owner-occupancy violation currently in Raleigh. ADUs operated as illegal short-term rentals are cited under the Short-Term Rental ordinance (UDO Section 6.7.A.5 and Code Section 12-3027), with separate enforcement.
ADU Rental Restrictions
Raleigh accessory dwellings may be rented long-term without a separate license. Short-term rental of an ADU requires a Short-Term Rental Zoning Permit under Raleigh UDO Section 6.7.A.5 and Code Section 12-3027.
Key details: Long-Term Rental: Allowed. STR Permit Required: Yes, UDO 6.7.A.5. Annual Permit Fee: Per Raleigh fee schedule. Wake County Tax: 3% occupancy tax. Daily STR Fine: Up to $500.
Operating an unpermitted STR violates UDO Section 6.7.A.5 with administrative citations up to $500 per day under NC Gen. Stat. 160D-404. Repeat violations result in permit revocation and Wake County tax enforcement.
ADU Permits
Raleigh permits accessory dwelling units, sometimes called backyard cottages, under Unified Development Ordinance (UDO) Section 2.5.1 and Section 6.7. Permits are issued ministerially through the Development Services Department for residential districts.
Key details: Code Section: UDO 2.5.1, 6.7. Max Size: 800 sq ft. Setback: 5 ft side and rear. Lead Agency: Development Services. State Preemption: None (NC).
Building an ADU without permits triggers a stop-work order under the State Building Code and a Notice of Violation under UDO Section 10.4. Permit fees double for after-the-fact permits, and unpermitted ADUs cannot be legally rented.
The Bottom Line
Compared to many U.S. cities, Raleigh gives residents more room on accessory structures. 2 of the 9 rules here are rated permissive. But permissive does not mean unregulated. There are still requirements, and the city does enforce them when violations are reported.
These rules come from Raleigh's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.