8-4F-6: PERIMETER LANDSCAPING AND SCREENING STANDARDS:
The intent of this section is to establish landscaping and screening standards required along the perimeter of the property. Table 8-4F-2 of this section specifies the standards for the minimum depth and minimum number of landscape points required per ten (10) linear feet as measured along the property line.
   A.   Property Lines That Do Not Abut A Roadway: All principally permitted and accessory uses in the RP, RR, RUT, R1, R2, R4, R6 and R8 base districts as listed in tables 8-2A-1 and 8-2B-1 of this title shall be exempt from the regulations of this article. Requirements of this article may be modified or waived by the commission for conditional uses in the RP, RR, RUT, R1, R2, R4, R6 and R8 base districts as listed in tables 8-2A-1 and 8-2B-1 of this title. Where the dimensional standards for the base district of the subject property require a setback of ten feet (10') or more, the following shall apply, unless otherwise noted:
      1.   The minimum depth of the landscaped area shall be six feet (6').
      2.   Abutting a residential district, a minimum of sixteen (16) landscape points shall be required per ten (10) linear feet.
      3.   Abutting a rural, commercial or industrial district, a minimum of eight (8) landscape points shall be required per ten (10) linear feet.
      4.   The director may waive perimeter landscaping requirements along portions of property lines not abutting a roadway where needed to accommodate construction of vehicular cross-access across property lines and where cross-access easements to adjacent properties are provided.
   B.   Property Lines That Abut A Roadway: Entryway corridors shall be as identified in the applicable comprehensive plan. Interstate, arterial, collector, and local streets shall be as identified by the Ada County long range highway and street map functional street classification system.
TABLE 8-4F-2: MINIMUM REQUIRED DEPTH AND POINTS
 
Classification Of Street Abutting Subject Property
Minimum Depth   Of Landscaped   Area
Minimum PointsRequired Per Ten Linear Feet
Entryway corridor
30 feet
12
Interstate abutting residential district
50 feet 1
22
Interstate abutting rural, commercial or industrial district
25 feet
18
Arterial, collector, or local street abutting rural or residential district
20 feet
12
Arterial, collector, or local street abutting commercial or industrial district
10 feet
10
Private road
5 feet
4
 
   Note:
   1.   This standard may be reduced where the applicant provides a sound wall that mitigates noise levels to a comparable level as would be achieved by meeting the 50 foot separation.
   C.   Required Number Of Landscaped Units: Required number of landscaped units shall be based on a proportional scale. For example, if the landscaped area were 440 linear feet and 8 units were required per 10 linear feet, the total required points would be 352 ([440 ÷ 10] x 8 = 352).
   D.   Point Values: Table 8-4F-3 of this section specifies the point value for each landscape element.
TABLE 8-4F-3: LANDSCAPE ELEMENT AND ASSOCIATED POINT VALUE
Landscape Element
Unit
Point Value
Landscape Element
Unit
Point Value
Shade tree (drought tolerant or native)
per tree
10
Shade tree (other)
per tree
9
Ornamental tree (drought tolerant or native)
per tree
7
Ornamental tree (other)
per tree
6
Evergreen tree
per tree
5
Shrub (drought tolerant or native)
per shrub
3
Shrub (other)
per shrub
1
Flowering plants
per 5 plants
1
Ground cover (drought tolerant or native)
per 100 square feet
3
Ground cover (other)
per 100 square feet
1
Turf (drought tolerant or native)
per 100 square feet
1
Turf (other)
per 100 square feet
0.5
Berm 1
per 10 linear feet
4
Fence1
per 10 linear feet
4
Wall1
per 10 linear feet
4
Sound wall1
per 10 linear feet
6
Boulder with 6 foot or greater circumference
per boulder
1
 
   Note:
      1.   Where a berm is combined with a fence, wall, or sound wall, the points shall be cumulative.
(Ord. 389, 6-14-2000; amd. Ord. 426, 9-26-2001)