17.31.050.B.1.a

Landscaping & trees

• Maximum barrier heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. at parkway edge2 ft

  Barriers up to 24 inches high, such as low walls or fences, are permitted at the interior edge of the parkway

• Maximum non-planted area in parkway20 pct

  A maximum of 20 percent of the parkway area may be organic or inorganic cover.

• Maximum root zone depth3 ft

  The root zone volume depth shall be 2 feet minimum and 3 feet maximum.

• Maximum root zone volume reduction for shared cells10 pct

  The root zone volume per tree requirement may be reduced by 10 percent where two or more trees share a contiguous root zone cell.

• Minimum access way width4 ft

  Access ways shall be a minimum of 4 feet in width

• Minimum frequency of access ways in parkway20 ft

  access ways shall be provided at a minimum frequency of one per every 20 feet of continuous parkway.

• Minimum parkway length as percentage of street frontageFrontageThe length of a lot line that touches a public street.30 pct

  In all other zoning districts, parkway length shall be no less than 30 percent of street frontage

• Minimum parkway length as percentage of street frontageFrontageThe length of a lot line that touches a public street.60 pct

  In EC-RM-32, parkway length shall be no less than 60 percent of street frontage

• Minimum planted area in parkway80 pct

  A minimum of 80 percent of the total required parkway area for a given project shall be comprised of plant material.

• Minimum parkway slope towards center1 pct

  slope at a minimum of 1 percent towards the center of the parkway.

• Minimum paved buffer width adjacent to street parking1.5 ft

  a paved buffer with a minimum width of 18 inches is required

• Minimum root zone depth2 ft

  The root zone volume depth shall be 2 feet minimum

• Minimum uncompacted root zone volume per tree800 cuft

  Each street tree shall be provided with an uncompacted root zone volume of 800 cubic feet minimum.

• Minimum street tree spacing30 ft

  Street trees shall be planted at a spacing of one per 30 feet.

• Minimum tree well length6 ft

  The minimum length of a tree well shall be 6 feet.