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Forsyth County, NC Building Setbacks & Zoning: Structure Height Limits (2026)

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

Key Facts

Detached accessory max
17 feet
Detached ADU max
25 feet
Attached ADU max
Height of principal dwelling
Single-family principal
≈40 ft (see district table)
Source
Winston-Salem/Forsyth UDO

Summary

In unincorporated Forsyth County, a detached accessory structure is limited to 17 feet maximum height under the UDO; a detached accessory dwelling unit may go up to 25 feet. Principal-building heights are set district-by-district in the UDO dimensional tables.

These county ordinances apply to unincorporated areas of Forsyth County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Detached: Size requirements for accessory structures (17 ft. maximum) ... Proposed: Detached: 25 ft. maximum; Attached: Cannot exceed the height of the principal.

Full Breakdown

The Winston-Salem/Forsyth County UDO caps detached accessory structures (sheds, detached garages, etc.) at seventeen (17) feet in height, and requires any accessory building over 17 feet to meet additional standards. Detached accessory dwelling units, adopted separately in 2022, are allowed up to 25 feet; attached ADUs may not exceed the height of the principal dwelling. Principal residential buildings follow the maximum-height column in the district dimensional table (commonly 40 feet in low- and medium-density single-family districts, rising to 45–60 feet in multifamily districts). Confirm your district's figure before designing.

Violations & Fines

Exceeding the applicable height limit is a UDO zoning violation and can block permit approval; relief requires a variance through the Board of Adjustment.

Frequently Asked Questions

How tall can a detached shed or garage be?
Under the UDO's accessory-structure size requirements, a detached accessory structure is limited to a maximum height of seventeen (17) feet.
How tall can an ADU be?
A detached ADU may be up to 25 feet maximum, while an attached ADU cannot exceed the height of the principal dwelling.

Sources & Official References

Other rules in Forsyth County

All Forsyth County rules

Compare Forsyth County to another location·View the North Carolina building setbacks & zoning overview

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