Morrisville Unified Development Ordinance – September 2018

Article 5: Development Standards Section 5.7. Perimeter and Streetyard Buffers 5.7.4. Buffer Type Standards

Table 5.7.3: Required Buffer Type A, B, C, D, E = Type of Perimeter Buffer (see Section 5.7.4) F, G, H, I, J, K = Type of Streetyard Buffer (see Section 5.7.4) n/a = Not Applicable (no buffer required) Existing Use Type or Category on Adjoining Land [2] or Classification of Adjoining Street Zoning of Adjoining Vacant Land [2] Proposed Use Type or Category [1] Single-Family Detached, Duplex, or Manufactured Home Dwelling Single- Family Attached Dwelling Multifamily Dwelling Institutional Use Commercial Use, or Mixed- Use Development Notes: [1] Where a development includes multiple buildings, buffer requirements shall apply to the zoning lot rather than to individual lots in the development. [2] Where the adjoining land is vacant and located within another zoning jurisdiction, the perimeter buffer type required shall be based on the Town zoning classification that, in the Planning Director’s opinion, most closely matches the zoning classification given the land by the adjoining jurisdiction. [3] Where an easement for major overhead high-voltage (100kV+) electrical power transmission lines abuts or crosses a residential use, a Type C Buffer Type Standards Table 5.7.4, Buffer Type Standards, describes five types of perimeter buffer and six different types of streetyard buffer in terms of their function, opacity, width, and screening requirements. Table 5.7.4: Buffer Type Standards Minimum Width and Screening Requirements Also see general requirements for all buffer types at bottom of table. Buffer Type A (Perimeter) This perimeter buffer provides a continuous opaque screen to a height of at least six feet. It serves as a visual and noise barrier between developments on adjoining properties. Industrial Use buffer shall be provided along the outside of the power line easement. [4] This buffer requirement is only applicable to sewage pump stations. (Ord. No. 2015-002, 04/29/2015; Ord. No. 2016-001, 05/10/2016) 5.7.4.

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Shade trees: 6 per 100 linear feet, with at least 5 feet between mature canopies

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Understory trees: 4 per 100 linear feet

Option 1

Evergreen shrubs: 20 per 100 linear feet and at least 6 feet high at maturity At least 50% of all trees must be evergreen

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Shade trees: 5 per 100 linear feet, with at least 5 feet between mature canopies

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Understory trees: 3 per 100 linear feet

Option 2

Evergreen shrubs: 15 per 100 linear feet and at least 3 feet high at maturity A solid fence or wall at least 6 feet high [1] At least 50% of all trees must be evergreen

September 25, 2018

Morrisville, NC

Page 5-32

Unified Development Ordinance