4.10 D-ON Natural

4.10.1 Purpose

The D-ON zone addresses open spaces that are maintained in a predominantly undeveloped state, and typically set aside for land conservation, passive recreation, and ecological restoration

4.10.2 General

All development in the D-ON zone must comply with the form standards of this section, as well as any applicable standards in other sections, including the following:

Principal UsesSection 6.1
Accessory UsesSection 6.2
Temporary UsesSection 6.3
LandscapeSection 7.1
Fences and WallsSection 7.2
StormwaterSection 7.3
Outdoor LightingSection 7.4
Corner VisibilitySection 7.5
Site ImpactsSection 7.6
Pedestrian AccessSection 8.1
Bicycle Access and ParkingSection 8.2
Vehicle Access and ParkingSection 8.3
Transportation Demand ManagementSection 8.4
On-Premise SignsSection 9.2
BlocksSection 10.1
Rights-of-WaySection 10.2
NonconformitiesSection 12.1

4.10.3 Lot

Lot Dimensions

ALot area (min)5,000 SF
BLot width (min)50’

Lot Coverage

CBuilding coverage (max)2%
DImpervious coverage (max)5%

4.10.4 Siting

Building Setbacks

AFront yard (min)15’
BCorner side yard (min)15’
CInterior side yard (min)15’
DRear yard (min)15’

4.10.5 Height

Building Height

ABuilding height (max)1 story

Story Height

BFinished ground floor level (min/max)0’/2’
Ground story height (min)N/A

4.10.6 Activation


Ground floor transparency front facade(min)N/A
Ground floor transparency corner side facade (min)N/A
Upper floor transparency front and corner facades (min)N/A

Pedestrian Access

Main entrance locationN/A

4.10.7 Specific Standards

  1. Trails and related public amenities, such as boardwalks, pavilions, and observation towers, are encouraged provided they do not negatively impact sensitive habitats.
  2. Substantial alteration to existing topography and landscape is permitted only as necessary to restore ecosystem services or a natural, pre- development condition.
  3. Native vegetation, such as grasses, shrubs, and trees, may be disturbed only as necessary to control noxious or invasive vegetation or to remove dead, dying, or diseased vegetation. Where removal of native vegetation is unavoidable to facilitate civic uses or public access, native or naturalized vegetation must be replaced in kind elsewhere on the site.
  4. Materials used for elements, features, and objects within the site should use muted, natural colors. Bright, reflective colors, including white, are discouraged.
  5. Site design should incorporate sustainable landscape design practices, in accordance with the Sustainable Sites Initiative Rating System and Reference Guide.
  6. The following exterior facade materials are prohibited on principal buildings:
    1. Reflective wall surface material with a Visible Light Reflectance (VLR) of greater than 15%.