a. For sites of one gross acre or larger, minimum open space of at least five percent of the gross site area shall be required. For developments utilizing the single-family infill development option standards in accordance with Section 1303.A.1.a, open space shall be provided as required by Table 614.B, column D, regardless of lot size.

b. A minimum of 50 percent of all accessible public and private open space areas should be shaded, of which 50 percent of the shade should be provided by trees or trellised vines.

c. Open space areas should be a minimum of 500 square feet with a minimum dimension of 20 feet.

a. Permeable paving, porous concrete or similar materials should be installed adjacent to treewells. The design should ensure adequate watering and root growth.

b. Alternative materials such as brick pavers, permeable concrete pavers, granite and flagstone should be encouraged on walkways.

Table 1310.1 Public Open Space Type Guidelines 

PUBLIC OPEN SPACES
Transect Zone	T4, T5, T6
Size	Five percent of the gross site area above one acre.*
Edge Condition	One side minimum fronting a thoroughfare or pedestrian way.
Surface	Paved and landscaped.
Shade and Landscaping	50 percent shade provided by trees. Ground cover and shrubs: should be provided in areas with no pavement or structures.
PASEOS
Transect Zone	T4, T5, T6
Guidelines	See Section 1304.H.
Surface	Paved and landscaped.
Shading	Minimum 75 percent shaded.

*Single-family infill developments must provide open space as required per Section 1310.A.2.a.