Setback Standards for the OX- Office Mixed Use District in Raleigh
Building setbacks in the City of Raleigh's OX- (Office Mixed Use) district are primarily determined by the specific building type chosen for development and the presence of any street frontages. Base primary street setbacks generally range from 5 to 10 feet, while interior side setbacks are often 0 or 6 feet, and rear setbacks range from 10 to 20 feet. These requirements are subject to modification if the property is designated with a specific street frontage or abuts a residential district.
Base Dimensional Setbacks in OX-
In the City of Raleigh, the OX- district allows several different building types, each with its own set of minimum setback requirements. These "Base Dimensional Standards" apply unless a property has a specific "Frontage" designation that overrides them.
| Building Type | Primary Street (Min) | Side Street (Min) | Side (Interior) (Min) | Rear (Min) |
|---|---|---|---|---|
| Detached House | 10' | 10' | 5' | 20' |
| Attached House | 10' | 10' | 5' | 20' |
| Townhouse | 10' | 10' | 10' (at site boundary) | 20' (at site boundary) |
| Apartment | 5' | 5' | 0' or 6' | 0' or 6' |
| General Building | 5' | 5' | 0' or 6' | 0' or 6' |
| Mixed Use Building | 5' | 5' | 0' or 6' | 0' or 6' |
| Civic Building | 10' | 10' | 0' or 6' | 0' or 6' |
| Tiny House | 10' | 10' | 5' | 10' |
[Sections 3.2.1 through 3.2.9]
Frontage-Specific Setback Overrides
Street Frontages in the City of Raleigh are applied to Mixed Use districts like OX- to mandate specific urban forms along the street edge. If a frontage is applied to a property, its setback and "build-to" requirements control over the base standards listed above [Section 3.4.1].
| Frontage Type | Primary Street Build-to (Range) | Side Street Build-to (Range) | Notes |
|---|---|---|---|
| -PK Parkway | 50' (Min setback) | N/A | Intended for heavily landscaped buffers [Section 3.4.3] |
| -DE Detached | Per Residential Infill | N/A | Maintains residential character [Section 3.4.4] |
| -PL Parking Limited | Base Min to 100' Max | 0' to 100' | Allows limited parking between building and street [Section 3.4.5] |
| -GR Green | 20' to 50' | 20' to 50' | Requires landscaped area between building and street [Section 3.4.6] |
| -UL Urban Limited | 0' to 20' | 0' to 20' | Buildings abut the sidewalk [Section 3.4.7] |
| -UG Urban General | 0' to 20' | 0' to 20' | Higher street wall continuity than -UL [Section 3.4.8] |
| -SH Shopfront | 0' to 15' | 0' to 15' | Highest level of walkability; "main street" feel [Section 3.4.9] |
Neighborhood Transition Requirements
When a City of Raleigh OX- district property immediately abuts a residential district (R-1, R-2, R-4, R-6, or R-10) that is vacant or contains a detached/attached house, "Neighborhood Transitions" apply to protect the lower-density area [Section 3.5.1].
Zone A: Protective Yard
This is a required buffer immediately abutting the residential district boundary line. No buildings or structures are allowed in this zone. The width varies based on the type of protective yard required (Type 1 is 10 feet, Type 2 is 20 feet, and Type 3 is 50 feet) [Sections 3.5.2, 3.5.3].
Zone B: Use Restricted
This zone extends from the edge of the Zone A protective yard to a point 50 feet from the residential district boundary line. Within this 50-foot area, only low-intensity uses such as surface parking, landscaping, or small accessory structures (max 14' height) are permitted [Section 3.5.4].
General Rules and Exceptions
- Measurement: Primary and side street setbacks are measured perpendicular from the edge of the existing or proposed right-of-way, whichever is greater [Section 1.5.4.B].
- Side/Rear "0' or 6'" Rule: For certain mixed-use building types, a 0-foot setback is allowed. However, if a setback is provided, it must be at least 6 feet to ensure adequate separation for maintenance and fire safety [Sections 3.2.4, 3.2.5].
- Encroachments: Certain building features like porches, balconies, and chimneys may encroach into required setbacks by specified distances (typically 4 to 12 feet, provided they remain at least 3 feet from the property line) [Section 1.5.4.D].
- Parking Setbacks: On-site parking must be located behind the applicable parking setback line. For most urban frontages in the OX- district, no on-site parking is permitted between the building and the street [Sections 1.5.5, 3.4.2].
Sections Cited
- Sec. 1.5.4. Building Setbacks
- Sec. 1.5.5. Parking Setbacks
- Sec. 3.1.1. District Intent Statements
- Sec. 3.2.1. Detached House
- Sec. 3.2.2. Attached House
- Sec. 3.2.3. Townhouse
- Sec. 3.2.4. Apartment
- Sec. 3.2.5. General Building
- Sec. 3.2.6. Mixed Use Building
- Sec. 3.2.7. Civic Building
- Sec. 3.2.9. Tiny House
- Sec. 3.4.1. Purpose and Intent (Frontage)
- Sec. 3.4.3. Parkway (-PK)
- Sec. 3.4.5. Parking Limited (-PL)
- Sec. 3.4.6. Green (-GR)
- Sec. 3.4.7. Urban Limited (-UL)
- Sec. 3.4.8. Urban General (-UG)
- Sec. 3.4.9. Shopfront (-SH)
- Sec. 3.5.1. Applicability (Neighborhood Transitions)
- Sec. 3.5.2. Transition Zones
- Sec. 3.5.3. Zone A: Protective Yard
- Sec. 3.5.4. Zone B: Use Restricted