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Durham, NC Building Setbacks & Zoning: Setback Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

RS-20 street yard (min.)
35 feet
RS-20 side yard (single, min.)
12 feet
Rear yard (all listed districts)
25 feet
RU-M / RC street yard (min.)
10 feet
RU-M / RC side yard (single, min.)
5 feet
Governing section
UDO Sec. 7.1.2.B

Summary

Durham's UDO sets minimum front, side, and rear yards for a single-family detached house by zoning district, from 35-foot street yards and 25-foot lot lines in the RS-20 suburban district down to 10-foot street yards in the RU-M and RC districts. Rear yards hold at 25 feet in every district.

B. Development Standards A single-family detached house shall be permitted in accordance with the table below. A single-family detached house shall also be permitted in the RR District in accordance with the standards of paragraph 6.2.1A, Dimensional Standards. Yards (min. feet): Street Yard (adjoining collector or greater street) RS-20 35, RS-10 25, RS-8 25, RS-M 25, RU-5/RU-5(2) 15, RU-M 10, RC 10. Street Yard (adjoining local street) RS-20 35, RS-10 25, RS-8 25, RS-M 20, RU-5/RU-5(2) 10, RU-M 10, RC 10. Side Yard (single) RS-20 12, RS-10 10, RS-8 9, RS-M 5, RU-5/RU-5(2) 5, RU-M 5, RC 5. Rear Yard 25 in all districts.

Source: City of Durham Code of OrdinancesView official code

Full Breakdown

Sec. B, Development Standards, in the Durham UDO sets the yard minimums for a conventional single-family detached house across the city's residential districts: RS-20, RS-10, RS-8, RS-M, RU-5/RU-5(2), RU-M, and RC. Street yards, the setback from the front lot line, run largest in the lowest-density RS-20 district at 35 feet on both collector-or-greater and local streets, stepping down through RS-10 and RS-8 at 25 feet, RS-M at 25 feet (20 feet on a local street), RU-5/RU-5(2) at 15 feet (10 on a local street), and RU-M and RC at 10 feet.

Side yard minimums for a single side range from 12 feet in RS-20 down to 5 feet in RS-M, RU-5/RU-5(2), RU-M, and RC, with combined both-sides totals of 30 feet in RS-20 tapering to 15 feet in RS-M and no combined total requirement in the Urban Tier districts. The rear yard minimum is flat at 25 feet in every one of these districts regardless of density. 1A. These figures govern the base zoning envelope; they can still be modified by other UDO provisions such as the Sec.

6 Affordable Housing Bonus (up to a 35% yard reduction), infill standards in Sec. 8, watershed overlay limits, or a local historic district, so a specific lot's buildable envelope should be checked against any overlay before design.

Violations & Fines

Building within the required street, side, or rear yard without an approved variance, special use permit, or applicable overlay adjustment is a zoning violation Durham City-County Planning enforces through a notice of violation and a stop-work or correction order; unresolved encroachments can hold up certificate-of-occupancy issuance and be referred for civil enforcement under the UDO's general remedies provisions.

Frequently Asked Questions

What is the minimum front yard setback for a house in Durham's RS-20 district?
UDO Sec. 7.1.2.B requires a minimum 35-foot street yard for a single-family detached house in the RS-20 district, whether the lot adjoins a collector-or-greater street or a local street.
Is the rear yard setback the same in every Durham residential district?
Yes, for single-family detached houses. Sec. 7.1.2.B sets a flat 25-foot minimum rear yard across RS-20, RS-10, RS-8, RS-M, RU-5/RU-5(2), RU-M, and RC, even though street and side yards shrink as district density increases.
Can Durham's standard yard setbacks be reduced?
Yes. A project using the UDO Sec. 6.6 Affordable Housing Bonus can reduce required yards by up to 35% (20% for RU-5/RU-5(2) and Small Lot Option single-family and two-family lots), and infill or watershed overlay standards can further modify the base Sec. 7.1.2.B figures.

Sources & Official References

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