Charlotte Accessory Structure and Detached Garage Setback Requirements
Under the City of Charlotte Unified Development Ordinance (UDO), most accessory structures must maintain a minimum setback of three feet from side and rear property lines. However, any structure intended for vehicle storage, such as a detached garage, must be set back at least 20 feet from the right-of-way or sidewalk to ensure adequate space for a parking pad. For larger structures exceeding 24 feet in height, the rear setback requirement increases significantly to 15 feet.
General Requirements for Accessory Structures in the City of Charlotte
The City of Charlotte defines an accessory structure as a building that is incidental and subordinate to the principal building on the same site [Section 2.3]. The City of Charlotte Unified Development Ordinance prohibits placing most accessory structures within the established front or corner side setbacks [Section 17.1.E.1].
For standard installations on residential lots, the following setbacks apply:
| Feature | Minimum Setback from Property Line |
|---|---|
| Standard Side Setback (Structure < 24' height) | 3 feet [Section 17.1.E.2] |
| Standard Rear Setback (Structure < 24' height) | 3 feet [Section 17.1.E.2] |
| Front Setback | Prohibited (See Exceptions) [Section 17.1.E.1] |
| Corner Side Setback | Prohibited [Section 17.1.E.1] |
| Separation from Principal Building | 5 feet [Section 17.1.E.3] |
Detached Garages and Carports
The City of Charlotte imposes specific requirements for detached garages and carports to prevent vehicles from obstructing public pathways. These structures must be positioned to allow for a functional off-street parking space between the structure and the public right-of-way [Section 17.2.E].
- Vehicle Entry Setback: Detached garages and carports must be set back a minimum of 20 feet from the right-of-way or the back of the sidewalk, whichever is greater [Section 17.2.B and 17.2.E].
- Driveway Length: This 20-foot distance is required to accommodate a parking pad or driveway of at least 20 feet in length [Section 19.6.A.1.a.iii.(C)].
- Corner Side Placement: A detached garage may be located in an established corner side setback only if it maintains the minimum 20-foot setback from the right-of-way/sidewalk [Section 17.2.E].
Height-Based Setback Increases
If an accessory structure in the City of Charlotte reaches a certain height, the City of Charlotte Unified Development Ordinance requires increased distances from property lines to mitigate the impact on neighboring parcels [Section 17.1.E.2.a].
| Structure Height | Required Rear Setback | Required Side Setback |
|---|---|---|
| Less than 24 feet | 3 feet | 3 feet |
| 24 feet or taller | 15 feet | Standard district side setback (typically 5 feet) |
Size and Location Exceptions
The City of Charlotte Unified Development Ordinance provides specific allowances for unique lot configurations:
Large Single-Family Lots
On a City of Charlotte single-family detached lot where the principal dwelling is set back at least 150 feet from the right-of-way, an accessory structure may be placed in the front yard. In this case, the accessory structure itself must be at least 50 feet from the right-of-way and must adhere to the standard side setbacks for that specific zoning district [Section 17.1.E.1.c].
Through Lots
On a through lot (a lot with frontage on two parallel streets), the City of Charlotte allows accessory structures to be located in the established side setback or in the established front setback, provided they are placed between the rear of the principal building and the street [Section 17.1.E.1.d].
Maximum Size Limits
For City of Charlotte residential uses, the total cumulative square footage of all accessory structures on a single lot (excluding Accessory Dwelling Units) cannot exceed the total heated square footage of the first floor of the principal structure. This calculation does not include structures open to the sky, such as swimming pools or tennis courts [Section 17.1.F].
Sections Cited
- Section 2.3 (General Definitions)
- Section 17.1 (General Standards for Accessory Structures)
- Section 17.2 (Standards for Specific Accessory Structures)
- Section 19.6 (Design of Surface Parking and Parking Lots)