Can you build a PSL Modular unit in North Carolina?

No. Under the NC State Building Code, Volume VIII (Modular Construction Regulations), modular units are inspected and labeled by a third-party agency accredited by the Building Code Council, and the NC Department of Insurance does random monitoring of manufacturers. A unit bearing that label is accepted by your local inspection department without further structural inspection. Your local permit covers the site work — foundation, utilities, and zoning.

No. ADUs are governed locally. In 2025, SB 495 would have required every local government to allow at least one ADU on single-family lots, but it was referred to the Senate Rules Committee and did not receive a floor vote, so it did not become law. As of 2026, your ADU options depend on your city or county.

Raleigh is among the most accommodating — it allows ADUs broadly, permits two on parcels in a Frequent Transit Area, and offers a faster ADU permitting track. Charlotte allows ADUs through its accessory-structure standards, and Asheville allows them as well (popular for mountain rentals). Durham and others have their own rules. Always confirm the current ordinance for your specific lot.

Coastal North Carolina (the Outer Banks and coastal counties) carries high hurricane design wind speeds and, in FEMA flood zones, base-flood elevation requirements that drive a piling foundation. The unit must be engineered to the coastal wind load and elevated as required — both set at the factory order so it arrives compliant and insurable.

Around Asheville, Boone, and the western counties, snow load becomes the structural driver and wildfire-resistant cladding may be required. A coastal or Piedmont spec won't suit the mountains; PSL Modular engineers the envelope to your elevation and climate.