Morrisville Unified Development Ordinance - April 2019

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)

Proposed Use Type or Category [1]

Existing Use Type or Category on Adjoining Land [2] or Classification of Adjoining Street

Zoning of Adjoining Vacant Land [2]

Single-Family Detached, Duplex, or Manufactured Home Dwelling

Single- Family

Commercial Use, or Mixed- Use Development

Multifamily Dwelling

Institutional Use

Industrial Use

Attached Dwelling

Freeway

n/a

F

F

F

F

F

F

Major or minor thoroughfare

n/a

G

G

G

G

G

G

Collector street

n/a

H

H

H

H

H

H

Local street (nonresidential – excluding TOD and MS Districts) Local street (residential – excluding TOD and MS Districts) Local street (TOD and MS Districts)

n/a

K

J

I

I

I

I

n/a

K

K

J

J

J

J

n/a

L

L

L

L

L

L

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 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)

Buffer Type Standards

5.7.4.

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.

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

• •

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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Morrisville, NC

April 23, 2019

Unified Development Ordinance

Page 5-31