Union County, NC Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Street/front setback range
- 20 to 40 feet by district
- Side setback range
- 5 to 15 feet by district
- Rear setback range
- 25 to 40 feet by district
- Corner side setback
- Half the street setback, 12.5-20 feet
- Governing table
- UDO Table 5-2, Section 5.030
- Citation fine schedule
- $50, then $200, then $500
Summary
In unincorporated Union County, the Unified Development Ordinance sets minimum yard setbacks by residential zoning district in Table 5-2, from 40 feet in the RA-200 and R-40 districts down to 20 feet in R-4. Side setbacks run 15 feet to 5 feet and rear setbacks 40 feet to 25 feet, measured under Section 100.050.
Table 5-2: R District Lot and Building Regulations--Conventional Development (amended 8-6-2018) ... Minimum Setbacks (feet) 40 40 40 30 30 30 25 20 Street/front [2] Side [3] 15 15 12 10 10 10 8 5 Rear 40 40 40 30 30 30 25 25 Corner Side 20 20 20 15 15 15 12.5 12.5 ... [2] Corner lots – one street side yard shall be ½ of the required street/front setback [3] For townhouses, side setbacks apply to end units only.
Full Breakdown
Union County's Unified Development Ordinance (UDO) governs lot and building dimensions on every parcel in unincorporated Union County, outside the corporate and extraterritorial limits of Monroe and the county's other towns, unless a town has separately adopted the UDO by resolution. 030's Table 5-2 sets minimum street/front, side, rear and corner-side setbacks for the eight conventional residential districts. RA-200, RA-40, RA-20, R-40 and R-20 all carry a 40-foot street/front setback and 40-foot rear setback, with a 15-foot side setback (12 feet in R-20). R-15 and R-10 step down to a 30-foot street/front and rear setback with a 10-foot side setback, and R-8 keeps the same 30-foot front and rear figures with a 10-foot side.
R-6 drops to a 25-foot street/front and rear setback with an 8-foot side setback, and the smallest-lot R-4 district requires only a 20-foot street/front setback, 5-foot side setback and 25-foot rear setback. 5 feet. 050 defines how these lines are measured: street setbacks run from the right-of-way line (or 30 feet from the street centerline if the right-of-way is not fixed), side setbacks from the interior side lot line, and rear setbacks from the rear lot line, with double-frontage lots applying street setbacks on both frontages instead of a rear setback.
A contextual-setback averaging option lets an addition or new house on an infill lot match the average street-yard depth of the nearest two lots on each side, but the averaging can never push a street-facing garage door closer than 20 feet.
Violations & Fines
Building without meeting the required setback is a violation under UDO Section 95.010, enforced by the Planning and Development administrator and the county attorney. Section 95.020 sets a graduated fine schedule: a warning citation giving 10 days to correct, then $50 for a first citation, $200 for a second, and $500 for a third or later citation for the same offense, with each day of continuing violation charged as a separate offense; violations are also a misdemeanor punishable by up to $500 or 30 days under NCGS 14-4.
Frequently Asked Questions
What is the minimum front setback in unincorporated Union County?
Can I build closer to the street if my neighbors' houses already sit closer?
Do accessory buildings follow the same setbacks as the house?
Sources & Official References
Other rules in Union County
Compare Union County to another location·View the North Carolina building setbacks & zoning overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.