Chapel Hill, NC Accessory Structures: Tiny Homes (2026)

North Carolina has not adopted the Appendix Q Tiny House provisions of the IRC into its statewide residential code, so a 'tiny home' in Chapel Hill is regulated either as a small single-family dwelling under the 2018 NC Residential Code or as an accessory apartment under the LUMO. Site-built or HUD-Code tiny homes on a permanent foundation may be: (1) the principal single-family dwelling — must meet the underlying Chapel Hill residential district's minimum lot area, lot width, setbacks, and dimensional standards under LUMO Article 3. R-1 historically required a 17,000 sq ft lot with 28 ft street / 14 ft other-line setbacks and 80 ft minimum width (the 2026 amendments package considered reducing R-1 minimum lot size to 10,000 sq ft); R-2 reduces from R-1; R-3, R-4, R-5, R-6 progressively reduce; R-SS-C uses Special Standards-Conditional dimensions; or (2) an accessory apartment under the LUMO — capped at 1,000 sq ft post-January 2026 amendments (previously 75 percent of the primary residence), one per lot, detached units must sit in the established rear yard and meet the primary residence's side and rear setbacks. Tiny homes on wheels (THOWs) registered as travel trailers, park-model RVs, or recreational vehicles with NC DMV do NOT meet the 2018 NC Residential Code as administered by Chapel Hill Building and Development Services and cannot serve as a principal or accessory dwelling in any Chapel Hill residential district. PODS and portable storage containers are not permitted as a permanent residential use. Manufactured (HUD-Code) homes are permitted only where specifically authorized in the LUMO Use Matrix and must meet NCGS § 143-145 and the NC Regulations for Manufactured/Modular Buildings on installation. Chapel Hill's LUMO does not currently include a tiny-home-specific use category — confirm with the Planning Department before designing a sub-400-sq-ft principal dwelling.