ADUs and lot splits
Charlotte's UDO, effective June 1, 2023, allows duplexes and triplexes in all six Neighborhood 1 districts, subject to conditions such as a straight, continuous common wall at least 20 feet deep between side-by-side units.
For investors: A house lot in N1-A through N1-F can take a second or third unit without a rezoning, but connecting units by a breezeway, carport, deck or utility room does not count, so check the wall layout before paying for plans on a conversion.
Source: Charlotte UDO, Article 15, Table 15-1 and Sections 15.4.EE and 15.4.JJ, Oct 2026
Outside N1-F, a quadraplex in Charlotte's Neighborhood 1 districts must sit on an arterial street and set aside at least one unit for households at or below 80% of area median income for 15 years.
For investors: Pricing a fourth unit on a Charlotte lot means modeling one rent at the affordable level for 15 years, set up through the UDO Zoning Administration Manual. A through lot qualifies only if both frontages are arterials, so confirm street classification before paying a premium for land.
Source: Charlotte UDO, Article 15, Section 15.4.GG, Oct 2026
Charlotte allows one accessory dwelling unit per lot beside a house, or beside a duplex whose units are not on sublots; it must stay in the same ownership and normally share the main driveway.
For investors: Section 15.6.F requires common ownership but sets no owner-occupancy condition. An ADU inside an accessory building may reach 600 heated square feet or 70% of the main home, whichever is larger, but never more than 1,000. Corner, through and alley lots may add a separate driveway.
Source: Charlotte UDO, Article 15, Section 15.6.F, Oct 2026