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1 <br />2 <br />3 475 Screening <br />4 (1) Rooftop HVAC and other mechanical units must be screened from views from the property <br />5 lines using the following means: <br />6 a. Proper placement on the roof. <br />7 b. An integrated screen panel that is architecturally compatible with the building. <br />8 c. Parapet heights sufficient for screening the views. <br />9 '2) Ground -mounted HVAC and other mechanical units for all structures other than single-family, <br />10 two-family, and townhomes must be screened from views from the property lines using the <br />11 following means: <br />12 a. Privacy fencing <br />13 b. An integrated screen panel that is architecturally compatible with the building. <br />14 c. Landscaped berms. <br />15 (3) Density/Use Buffering and Transitioning. Within the additional lot depth/width area <br />16 described in Section 430, the following options are required when different residential uses <br />17 abut each other or residential uses abut an existing or planned non-residential use. <br />18 a. A continuous six-foot privacy fence with 2-inch caliper overstory trees planted every 20 <br />19 feet, roughly evenly spaced. <br />20 b. A vegetative buffer containing four 2-inch caliper overstory, four 6-foot evergreen, and <br />21 four 1.5-inch understory trees planted per 100 feet of property boundary on both sides <br />22 of a berm with a maximum slope of 4:1. <br />23 c. If this area is used for storm water management, both sides of the basin shall be lined <br />24 with 2-inch caliper overstory trees at the rate of one tree per 20 feet, roughly evenly <br />25 spaced and large shrubs at the rate of one per three feet. The side of the basin closest <br />26 to a non-residential use shall add one 6-foot evergreen tree per 40 feet, roughly evenly <br />27 spaced. <br />28 d. Other options may be approved by the City Council based on site and adjacent site <br />29 conditions and existing vegetation. <br />30 <br />31 480 Residential Architectural Design Standards <br />32 <br />33 (A) Single -Family Homes, Two -Family Structures Exterior building materials. The type of building <br />34 materials used on exterior walls on all structures in the --Ft 1 Residential District shall be face brick; <br />35 natural stone; stucco; aluminum, steel, &F vinyl siding; wood; masonitc products or other <br />36 compatible residential materials that may-bc approved by the city. <br />37 <br />38 (B) Townhomes, Rowhomes, Multi -Family Buildings. The purpose of this section is to encourage the <br />39 development of high -quality, diverse multiple -dwelling structures in the city while permitting <br />40 flexibility in the development process. <br />41 (1) General standards. The requirements in this section apply to the front facades of all multiple- <br />42 dwelling structures, as defined under permitted uses in this section. <br />43 a. The type of building materials used on exterior walls of all townhomes, rowhomes, and <br />44 multi -family structures in the—R 3 Residential District shall be face brick; natural stone; <br />45 stucco; aluminum, steel, or vinyl siding; wood; masonitc products; or other compatible <br />46 residential materials that may be approved by the city council. Exterior Insulation and Finish <br />47 Systems (EIFS) material is prohibited. The front exterior building finish of multiple -family <br />48 buildings shall consist of a minimum of 35 percent face brick, natural stone, or stucco <br />Page 70 of 160 <br />