Kill the parking requirement and the math changes. That’s the provision in North Carolina’s new Regulatory Reform Act that will actually move units, and it’s easy to miss underneath the headline.
Gov. Josh Stein signed Senate Bill 445 on August 11, along with three other bills. The housing title preempts local zoning in every non-coastal North Carolina city of 50,000 or more residents, requiring each to permit at least one accessory dwelling unit on any parcel zoned single-family.
What cities can no longer do
Four things, specifically. They can’t require special or conditional zoning approval for an ADU. They can’t impose minimum parking requirements. They can’t charge higher permitting fees for ADUs than for other residential work. And they can’t cap ADU size below 800 square feet. Cities also can’t prohibit leasing the primary house and the ADU long-term to two separate households.
Carve-outs survive for private covenants, historic districts, National Historic Landmarks, and parcels without water or wastewater service.
“North Carolina is growing rapidly, and the cost of housing is increasing,” Stein said in his signing statement. “We need to build more housing units of all types to drive down rents and mortgages.” He added that the bill “cuts red tape to help produce more houses and apartments and deliver results for North Carolinians.”
Two dates, six months apart
Calendar both. The ADU mandate binds on January 15, 2027. Affected cities have until July 1, 2027 to adopt conforming ordinances. That leaves roughly six months where the state standard governs and local codes may still say something else, which is exactly the window where a permit tech tells a builder no and is wrong.
Affected metros include Raleigh, Durham, Greensboro, Winston-Salem, Charlotte, Fayetteville, Cary, Wilmington and Asheville.
The adaptive reuse provision is narrower than early coverage suggested, and trade press is likely to get it wrong. It legalizes converting previously developed commercial, business or industrial property to single-, two- or multifamily housing, and bars localities from capping those conversions below 60 feet in height. But it applies only in cities of 80,000-plus inside counties of 1 million-plus, sharply narrowed from the House version’s 50,000 and 275,000 thresholds. In practice that’s a Mecklenburg and Wake County story, not a statewide one.
For small residential GCs, by-right approval is what removes the discretionary-review risk that keeps lenders out of ADU lending. An ADU that no longer needs a parking pad also fits on lots that were previously undevelopable. Those two changes together are worth more than the size floor.