§ 9.20. Traditional Neighborhood Development (TND).

"Traditional neighborhood development" means a compact, mixed-use neighborhood where residential, commercial and civic buildings are within close proximity to each other.

9.20.1

Permitted in CPUD. Traditional Neighborhood Development is a permitted use within a CPUD District. Where differences in the CPUD and TND requirements exist, the requirements for TND shall prevail. Traditional Neighborhoods are designed as compact, walkable, diverse, safe, and attractive neighborhoods. They are defined by the following principles.

1.

Compact and walkable. Neighborhoods should be compact enough to encourage development of pedestrian connections and destinations without excluding automobiles.

2.

A hierarchy of interconnected streets. Streets and roads function as a connected network, dispersing traffic and offering a variety of pedestrian and vehicular routes to any destination while connecting and integrating the neighborhood with surrounding communities.

3.

An identifiable neighborhood/community center and edges. A center that includes public spaces, such as a square, green or important street intersection; and public buildings, such as a library, church or community center, and retail businesses; all of which provides a civic focus and informal place of gathering; and edges that promote neighborhood identity.

4.

A variety of housing choices within the same neighborhood. The neighborhood includes a variety of dwelling types so that younger and older people, singles and families, of varying income levels may find places to live.

5.

A diverse mix of activities (residences, shops, schools, workplaces and parks, etc.) occur in proximity. A variety of uses within the same building, block and neighborhood is an essential component to the function and character addressed by traditional neighborhood development (TND) mixed use. Many activities of daily living should occur within walking distance, allowing independence to those who do not drive and adding to neighborhood vitality.

6.

A range of transportation options. Streets are designed to promote the safe and efficient use by walkers, bikers, and drivers.

7.

Pedestrian-friendly. Features such as safe, attractive and comfortable streets and public spaces promote walking as a viable option to auto trips.

8.

Open spaces, greens, and parks. Significant cultural and environmental features are incorporated into the design of the development. A range of parks, from tot-tots and village greens to ball fields and community gardens, are distributed within neighborhoods.

9.20.2

Dimensional Requirements for TND.

9.20.2.1

Overall Size:

1.

Traditional Neighborhoods should be large enough to contain a mix of uses, and conform to the principles for a TND. They should be small enough to allow a pedestrian to travel from the center to the edge in five to ten minutes.

2.

The minimum size of a Traditional Neighborhood shall be 35 acres.

3.

Sites larger than 70 acres may be developed as multiple neighborhoods, with each neighborhood designed to be integrated into an overall plan and the total site subject to all the provisions.

4.

Applications for sites less than 35 acres shall be considered when adjacent to or integrated with an existing or approved Traditional Neighborhood that is consistent with the principles for a TND.

9.20.2.2

Densities:

1.

Residential: The number of residences will not exceed four (4) dwelling units per acre in the total TND. Residential density will not exceed ten (10) units per acre of land in any single phase.

2.

Commercial, Institutional, or Other Uses (Non-residential): The total ground floor area of non-residential development uses shall be a minimum of 10 percent of the traditional neighborhood development.

3.

Common Open Space: At least twenty (20) percent of the gross acreage of the Traditional Neighborhood Development must be common open space. Open space may include parks, recreation areas, or un-developable areas such as steep slopes and wetlands. At least 25 percent of the common open space must be dedicated to the public for parks and recreation.

4.

Upon submittal of a Preliminary Plat and Final Plat, the submittal must be accompanied by a certification from the developer designating the following:

a.

All certification requirements for the underlying zoning district (CPUD).

b.

Total acreage of the TND.

c.

Total acres in phase and total acres developed in TND.

d.

Number of residential units in phase and total residential units developed (including proposed units).

e.

Residential density developed (including proposed units) per gross acre of total TND;

f.

Percent proposed in phase and developed in TND for residential, open Space - both common open space and parks/recreational areas, other uses and future development.

9.20.3

Traditional Neighborhood Development Design Standards.

9.20.3.1

Neighborhood Uses: In order to achieve the proximity necessary to make neighborhoods walkable, the TND will have a mix of land uses. The traditional neighborhood development will consist of a mix of residential uses, a mixed use area, and open space.

9.20.3.2

Mixed Residential uses can occur anywhere in the traditional neighborhood development. The mix of residential uses will be for more than one income level and age group. Residential uses permitted will be consistent with uses permitted in the Zoning District.

a.

There shall be no minimum standards for lot size.

b.

Every single-family dwelling shall have access to a street, court, or walkway or other area dedicated to public use.

c.

Maximum length of a continuous structure of townhouse or condominiums is 8 dwelling units.

d.

Curb cuts for driveways to individual residential lots shall be prohibited along arterial streets. Curb cuts shall be limited intersections with other streets or access drives to parking areas for commercial, civic or multifamily residential uses.

9.20.3.3

Mixed use area of the TND shall be composed of commercial, residential, civic or institutional, and open space uses. All residents shall be within approximately ¼ mile or a 5-minute walk from existing or proposed commercial, civic, and/or open space areas. Uses permitted will be consistent with uses permitted in the underlying Zoning District.

9.20.3.4

Open space uses shall be incorporated in the traditional neighborhood development as appropriate.

9.20.3.5

Setbacks:

a.

Building Setback, Front - Along Existing Public Rights-of-Way Internal to the TND: Structures shall have a minimum building setback of 10 feet.

b.

There are no building setbacks within the TND.

9.20.3.6

Building Separation: There will be no minimum separation of buildings, but all buildings must comply with the Standard Building Code.

9.20.3.7

Building Heights: Maximum height of all structures will comply with § 9.18.2.6.

9.20.3.8

Circulation Standards: The circulation system shall allow for different modes of transportation. The circulation system shall provide functional and visual links within the residential areas, mixed use area, and open space of the traditional neighborhood development and shall be connected to existing and proposed external development. The circulation system shall provide adequate traffic capacity, provide connected pedestrian and bicycle routes (especially off street bicycle or multi-use paths or bicycle lanes on the streets), control through traffic, lot access to streets of high traffic volumes shall be discouraged, and promote safe and efficient mobility through the traditional neighborhood development.

9.20.3.9

Pedestrian Circulation: Convenient pedestrian circulation systems that minimize pedestrian-motor vehicle conflicts shall be provided continuously throughout the Traditional Neighborhood Development.

a.

Sidewalks shall form an interconnected network.

b.

Sidewalks will be provided on a minimum of one (1) side of cul-de-sac streets, unless topographic conditions prohibit.

c.

Sidewalk requirements may be waived where open space abuts a street if an accessible pedestrian path or trail is provided within two hundred (200) feet of said street and links with required sidewalks at each end.

d.

Sidewalks shall be provided where residential or mixed uses border the street.

e.

Sidewalks in residential areas will be a minimum of 5 feet in width, depending on projected pedestrian traffic, and will connect all dwelling entrances to the adjacent public sidewalk.

f.

Sidewalks in mixed use areas will connect building entrances to the adjacent public sidewalk and to associated parking areas. Such walkways shall be a minimum of 5 feet in width.

9.20.3.10

Motor Vehicle Circulation: Motor vehicle circulation shall be designed to minimize conflicts with pedestrians and bicycles. Traffic calming features may be used to encourage slow traffic speeds.

a.

Street Hierarchy: Each street within a traditional neighborhood development shall be classified according to:

b.

Major Collector: This street provides access to commercial or mixed-use buildings, but it is also part of the TND's major street network. On-street public parking, whether diagonal or parallel, helps to slow traffic. Additional parking in accordance with Greene County parking requirements shall be provided in lots to the side or rear of buildings. Design speed is 30 mph.

c.

Minor Collector: This street provides primary access to individual residential properties and connects streets of lower and higher function. Design speed is 25 mph.

d.

Local Street: This street provides primary access to individual residential properties. Design speed is 20 mph.

e.

Alley: These streets provide access to residential properties where street frontages are narrow, where the street is designed with a narrow width to provide limited on-street parking, or where alley access development is desired to increase residential densities. Alleys may also provide delivery access or alternate parking access to commercial properties.

f.

Street jogs and offsets will be permitted at a minimum of 75 feet on TND Local streets and Alleys only.

9.20.3.11

Street Widths and Design Criteria:

a.

Public Roads: Roads proposed for dedication to Greene County will be designed and constructed in accordance with the Greene County Subdivisions Regulations and Greene County road standards.

b.

Private Roads: Private roads may be designed and constructed according to alternate engineering standards. These alternative standards and justification will be provided to the Greene County Planning and Zoning Commission when the Preliminary Plat for the TND is submitted.

c.

Developments designed to have private roads will indicate on the Preliminary and Final Plat which roads are to be designated as Private Roads. The Preliminary and Final Plats will have the following Owner's Waiver:

"I (we) hereby certify that I am (we are) the owner(s) of the property shown and described herein and, for roads designated as "Private" on this plat, I (we) hereby waive the right to seek future acceptance of the roads as county owned roads for maintenance purposes, unless prior to such request the "Private Roads" have been brought into compliance with the current Subdivision Regulation of Greene County road standards."

This statement shall be signed and dated by the owners, proprietors, or trustees, if any, prior to the final plat submittal.

9.20.3.12

Parking: Parking shall meet the requirements of Article [Section] 6.2. In areas other than single-family residential, on-street parking on private streets available along the frontage lines that correspond to each lot may be counted toward the minimum parking requirements of the lot.

9.20.3.13

Signage: Signs shall meet the requirements of Article X.