Regulation of Accessory Dwelling Units
House Bill 627 would require local governments in North Carolina to allow at least one accessory dwelling unit (ADU) for each single-family detached home in residential zones where single-family homes are already permitted. The bill defines an ADU as an attached or detached residential structure that is accessory to the primary home and smaller than the primary dwelling. It also allows ADUs to be built either at the same time as the main house or later.
The bill limits how local governments may regulate ADUs. They could not require conditional zoning, impose minimum parking requirements or extra parking rules, prohibit separate long-term rentals of the primary home and ADU, block utility connections where capacity exists, charge permit fees above those for a similar single-family home, or set ADU size caps below 800 square feet. Local governments would still be allowed to require certain setbacks, place ADUs to the side or rear of the main house, and require ADUs to be smaller than the primary dwelling. The bill also preserves local authority to enforce other laws and does not override private covenants or restrictions in historic districts and National Historic Landmarks.
The bill would amend Chapter 160D of the General Statutes by adding new statewide standards for ADUs and would apply to permit applications submitted on or after October 1, 2025. It also requires local governments to adopt implementing development regulations by January 1, 2027, and provides that if they fail to do so, ADUs must be allowed without limitations. Local governments that already have ordinances meeting the bill’s requirements would not need to adopt new ones.
The overall sentiment reflected in the bill text is pro-housing and pro-development, with the stated goal of increasing affordable housing by making ADUs easier to build and site. No committee transcript or vote record was provided, so there is no recorded debate or formal vote history to indicate broader legislative support or opposition. Based on the structure of the bill, the likely policy emphasis is on expanding housing supply while standardizing local regulation.
The main points of contention are likely to involve local control versus statewide preemption, especially the bill’s limits on parking rules, zoning conditions, permit fees, and minimum size restrictions. Local governments may also object to the automatic allowance of ADUs if they fail to adopt regulations by the deadline. At the same time, the bill preserves some local discretion and excludes historic properties and private covenants, which may address concerns from preservation and neighborhood groups.
The bill would create a new statewide ADU framework in Chapter 160D, limiting local governments’ ability to restrict accessory dwelling units in residential single-family zones and requiring them to permit at least one ADU per qualifying lot. It would affect zoning, permitting, utility connection rules, parking standards, and local fee schedules, while preserving certain local powers and exemptions for historic districts, National Historic Landmarks, and private covenants. If local governments do not adopt conforming regulations by January 1, 2027, ADUs would be allowed without local limitations.
The bill’s stated purpose and structure indicate a generally favorable, pro-housing sentiment centered on expanding affordable housing options through ADUs. Because no committee discussion or vote record was provided, there is no direct evidence of opposition or support from legislators in the materials supplied. The available text suggests the bill is intended as a statewide housing-supply measure rather than a narrow local planning adjustment.
Likely contention centers on state preemption of local zoning authority. Local governments may resist the bill’s restrictions on parking requirements, conditional zoning, permit fees, and minimum size limits, as well as the mandate to allow ADUs in qualifying residential areas. Neighborhood and preservation interests may also focus on density, neighborhood character, and enforcement concerns, though the bill attempts to narrow objections by exempting historic districts, National Historic Landmarks, and private covenants.