Morrisville Unified Development Ordinance - February 2021

Article 4: Use Standards Section 4.3. Accessory Uses and Structures 4.3.3. General Standards for All Accessory Uses and Structures

uses and structures for which a reference to this section is provided in the “Use -Specific St andards” column of the Accessory Use/Structure Table for a particular type of accessory use or structure regardless of the zoning district in which they are allowed or the review procedure by which they are approved, unless expressly stated to the contrary. These standards may be modified by other applicable requirements in this Ordinance.

General Standards for All Accessory Uses and Structures

4.3.3.

A. Relationship to Principal Use or Structure

1. Except as otherwise expressly allowed in this Ordinance, an accessory use or structure shall not be established or constructed before the establishment or construction of the principal use or structure. 2. If the principal use or structure is destroyed or removed, the accessory use or structure shall no longer be allowed. 3. Except as otherwise expressly allowed in this Ordinance, the total floor area of non-habitable accessory structures to a residential use shall not exceed 50 percent of the heated floor area of the principal structure(s) on the lot. See Section 4.3.5.B.1, Accessory Apartment for habitable accessory structure standards. 4. Except where otherwise expressly allowed in this Ordinance, the total floor area of buildings accessory to a nonresidential use shall not exceed the lesser of 2,000 square feet or 10 percent of the floor area of the principal building(s) on the lot. B. Location of Accessory Uses and Structures 1. No accessory use or structure shall be located within any platted or recorded easement or over any known utility, or in an area designated as a fire lane or emergency access route on an approved site plan. 2. No accessory structure shall be located within a perimeter or streetyard buffer except a screening fence or wall in accordance with Section 5.7, Perimeter and Streetyard Buffers 3. No accessory structure shall inhibit the access to or function of a street or vehicle use area. 4. No accessory structure shall obstruct sight distances. 5. No accessory structure shall impede emergency access. 6. Unless otherwise provided in Section 11.4.2.D, Allowable Encroachments into Required Yards, no accessory structure shall be located in a required front yard or corner side yard. 7. Unless otherwise provided in Section 11.4.2.D, Allowable Encroachments into Required Yards, accessory uses or structures may be located in a required side yard or rear yard, provided an accessory structure, other than a fence or wall, that is more than ten feet in height is set back from the nearest side or rear lot line one foot for every foot (or fraction thereof) the structure’s height exceeds ten feet. 8. Unless otherwise provided in subsection 7 above or in Section 11.4.2.D, Allowable Encroachments into Required Yards, accessory uses and structures shall comply with the minimum setback standards applicable in the zoning district where the structure is located. C. Accessory Uses and Structures in the Right-of-Way Except where otherwise expressly prohibited in this Ordinance, any structure accessory to development on adjoining property within a public street right-of-way maintained by the Town of Morrisville shall:

Morrisville, NC

February 1, 2021

Unified Development Ordinance

Page 4-34