§ A28-5 MINIMUM AREA STANDARDS AND REQUIREMENTS.
   (A)   The following minimum area standards and requirements shall be met and no improvements shall be placed on such lands unless the lands to be used or improved shall meet the following area and dimensional requirements.
      (1)   The maximum number of dwelling units shall not exceed 3,000 units.
      (2)   The maximum square footage of retail, limited business, and institutional uses shall not exceed 300,000 square feet.
   (B)   The following minimum area standards and requirements shall be met and no improvements shall be placed on such lands unless the lands to be used or improved shall meet the following area and dimensional requirements.
      (1)   Table of Minimum Area Standards and Requirements.
Specification
Zone 1
Zone 2
Zone 3
Zone 5
Zone 6
Zone 9
Specification
Zone 1
Zone 2
Zone 3
Zone 5
Zone 6
Zone 9
Minimum lot dimensions
Lot area (square feet):
1,300
   Interior lot
6,000
4,800
20,000
   Corner lot
9,000
7,500
40,000
Lot width (feet)
-
   Interior lot
50
40
100
   Corner lot**
65
40
100
Minimum square feet of land per unit
3,500
Single-loaded building
2,800
5,200
Double-loaded building
9,900
Minimum units per acre
12
13
Single-loaded building
6
Double-loaded building
13
Maximum units per acre
24
Minimum building setbacks (feet)
Along principal or arterial streets
35
50
-
   Primary and accessory dwelling units
50
   All garages
25
Along collector streets
15
40
30
   Primary and accessory dwelling units
30
   All garages
15
Along local streets
15
Along Pilot Knob Road, north of 157th Street West, as measured from a line located 85 feet east of the west line of section 36, township 115, range 20
50
Along Pilot Knob Road, south of 157th Street West, as measured from a line located 110 feet east of the west line of section 36, township 115, range 20
25
Along Pilot Knob Road right-of-way reserve area
25
Along 160th Street west right-of-way reserve area
10
Along all other streets (including 157th Street West)
15
   Primary and accessory dwelling unit (AUD Zone 1 only)
15
15
   Front-loaded garage (attached or detached)
25
15
   Side-loaded garage (attached or detached)
15
10
Along any private drive (distance in feet from the curbline of the private drive)
20
Side lot line
15
   Single-family dwellings
5
5
   Two-unit dwellings
5
5
   Multiple dwellings
15
15
   Between structures:
      Two-unit dwellings
20
      Multiple dwellings
20
25
Corner lot
   Primary and accessory unit dwelling
15
15
   Front-loaded garage
15
   Side-loaded garage
25
20
   Interior side
5
5
   Two-unit dwellings
15
   Multiple dwellings
15
15
15
Rear lot line
10
15
   Principal dwelling unit
15
20
   Accessory unit dwelling
15
   Garage
10
20
   Two-unit dwelling
10
   Multiple dwellings
5
15
Along any private street or drive
   Front
20
20
   Side
10
25
   Rear
20
20
20
Side lot line
10
20
Between Structures
25
Rear lot line
20
Maximum lot coverage
   Building (percent)
40
45
45
35
30
   Building and impervious surface (percent)
50
55
55
50
Maximum building height (feet)
35*
35*
45
35
50
50
Maximum number of stories
2
3
3
4
Minimum parking setback (feet)
Along principal or arterial streets
15
20
Along all other streets/private drives
10
Along community or neighborhood collector streets
10
Along local streets
10
Along and side or rear yard
10
Apartments and continuum of care retirement community
Maximum building height (measured in feet from first elevation to highest roof peak)
70
Maximum number of stories
4
Minimum garage/accessory building setbacks
Along principal arterial or minor expander streets
25
Along 160th Street west right-of-way
15
Along community or neighborhood collector streets
10
Along local streets
25
Along any side or rear yard
10
*Building height shall be measured from elevation of the first floor to highest point of the roof. The exposed foundation of any structure shall not exceed four feet.
**The width of a lot that abuts a round-about shall be calculated by adding the following:
   a.   The lineal length of the lot adjacent to the curve.
   b.   The shortest side of the lot immediately adjacent to the curve.
Note: The table of minimum area requirements and standards for Zones 4 through 7 will be established at the time of formal approval of land use requests for the remaining portion(s) of the Cobblestone Lake development.
Zone 8 shall comply with area requirements set forth in § A1-48.

Note: The minimum lot area, side yard setback and front (street) setback requirements set forth above for Zone 2 shall not apply in the Cobblestone Lake 5th and 6th Additions and shall be as set forth in Section A28-5(G)(9) herein.
Note: The minimum lot width set forth in Zone 2 shall not apply for Blocks 12 and 13, Cobblestone Lake 3rd Addition, and Cobblestone Lake 6th and 9th Additions and shall be as set forth in A28-5(G)(10) herein.
 
      (2)   Screening, see § 155.348.
      (3)   Landscaping, see § 155.349.
      (4)   Maximum impervious surface, see § 155.350.
      (5)   Lighting, see § 155.353.
      (6)   Off-street loading, see § 155.354.
      (7)   Parking, see §§ 155.370 through 155.379.
   (C)   Residential site design: The following design elements shall be incorporated into Zone 1 of the planned development to assure an overall sense of harmony.
      (1)   Residential areas shall be designed to emphasize human scale which shall include:
         (a)   Sidewalks shall be installed along all public and private streets. If deemed appropriate by the city council, a separate pedestrian circulation plan may be substituted.
         (b)   Local residential streets shall be designed narrow enough to discourage speeding, but wide enough to allow for on-street parking along one side. Local streets shall have a minimum right-of-way width of 52 feet and a paved driving surface width of 26 feet.
         (c)   The "entry street," with access from Diamond Path, shall have a minimum right-of-way width of 87 feet and two paved driving surfaces 20 feet wide that will be separated by a 15-foot wide center median.
         (d)   Enhancement of the pedestrian- friendly environment by minimizing the presence or appearance of garages whenever possible.
      (2)   Driveways serving structures adjacent to streets with raised center medians shall be prohibited, except the property located at 15798 Cobblestone Lake Parkway, legally described as Lot 5, Block 2, COBBLESTONE LAKE 2ND ADDITION, may have driveway access to the property via 158th Street, subject to the following requirements:
         (a)   Only one driveway access to this property is permitted.
         (b)   The principal dwelling structure on the property shall front Cobblestone Lake Parkway.
         (c)   Any attached garage to the principal dwelling unit shall be oriented on the property so the door(s) for vehicle access into the garage are facing east or south.
         (d)   The structure existing in the southeast corner of the property as of April 15, 2013, shall be existing on the property on the date a building permit application for the principle dwelling unit is filed with the city and said structure shall remain on the property thereafter and be converted for use as a detached garage.
      (3)   The maximum driveway width within the street right-of-way shall be 14 feet.
      (4)   No dwelling unit shall be set back more than 25 feet from the front property line.
   (D)   Building design and materials: The following design elements shall be incorporated into all site plans for buildings:
      (1)   The main entrance to the primary dwelling unit shall face the street.
      (2)   Entry features of all primary dwellings shall incorporate a front entry porch or stoop that shall be constructed in a manner that is harmonious with the primary dwelling.
      (3)   All accessory structures shall incorporate the architectural design and exterior finish of the primary structure.
      (4)   A building or group of buildings shall maintain a compatible relationship with the surrounding context of an area in regard to:
         (a)   Rhythm of spaces between buildings.
         (b)   Rhythm of facade details and relationships, such as relationship to horizontal or vertical lines, and facade openings.
         (c)   Building scale and mass and setbacks.
         (d)   Building forms and roof shapes.
      (5)   All building elevations shall be considered a front for the purpose of exterior building material use and appearance.
      (6)   Appropriate transitions, such as height, facade details, and landscape buffers shall be created.
      (7)   All masonry exterior facades of plain concrete, either precast or cast in place, shall not be permitted, except as a small design element.
      (8)   The use of vinyl, steel, aluminum or similar materials for the exposed finish shall not be allowed.
      (9)   All garages oriented to the front yard shall be set back a minimum of five feet from the front elevation of the primary dwelling unit. Covered porches or stoops that extend a minimum of 50% of the width of the front elevation of the dwelling unit shall constitute the front elevation for purposes of measuring setback distances.
   (E)   Landscape Design: The following design elements shall be incorporated into all site plans in any area. The goal of these regulations is to assure an overall harmonious theme will be created for all projects within this planned development. A master landscape plan for all zones shall be submitted to the city and the following design elements shall be incorporated:
      (1)   All plant materials to be utilized shall be identified on the plan and a landscape plant materials list provided.
      (2)   Provide screening of undesirable views.
      (3)   Compliment the architectural form of the building.
      (4)   Define walkways, internal traffic circulation areas, special use areas, and building entries through the use of special paving materials such as brick pavers, stamped concrete, paving stones, etc., or a combination thereof.
      (5)   Provide a pleasant street experience.
      (6)   Soften the visual impact of large paved areas.
      (7)   Soften the edge between a parking lot or street and building.
      (8)   Mitigate the impacts of lighting or other negative influences.
      (9)   The landscaping for each individual lot within the planned development shall be consistent with the master landscape plan.
      (10)   Signage and identity structures shall be incorporated in the master landscape plan. Planting beds, conifers, and ornamental trees shall be used to accent entries and signage.
      (11)    An undulated sodded landscaped berm or berms shall be installed, where feasible, adjacent to any principal or minor arterial and collector streets at a maximum 3:1 slope. The berms shall be subject to the traffic visibility requirements of § A1-1 (§ 155.335)
   (F)   Signage. The following design elements shall be incorporated into all site plans. The goal of these regulations is to assure an overall harmonious theme will be created for all areas within this planned development.
      (1)   Signage shall be in accordance with Chapter 6 of the City Code of Ordinances.
      (2)   A master signage plan for each phase of development shall be submitted for approval by the city and shall contain identification of all sign locations, dimensions, finishes, materials, range of colors, and method of lighting.
   (G)   Residential Site Design. The following design elements shall be incorporated into Zones 2 and 3 of the planned development:
      (1)   All two-family dwelling unit garages shall be oriented so that the garage door is perpendicular to the front elevation of the dwelling unit. Garage doors that are parallel to the front elevation of two-unit buildings shall be allowed only if the units are part of a master development and shall be subject to § A28-5(D)(9).
      (2)   Residential streets shall be designed to emphasize human scale which shall include:
         (a)   Sidewalks shall be installed along all public and private streets. If deemed appropriate by the City Council, a separate pedestrian circulation plan may be substituted.
         (b)   All driveways shall have a minimum length of 20 feet and the maximum driveway within the public street right-of-way shall be 14 feet.
         (c)   Private streets to serve multiple dwelling units in Blocks 1 and 2 and Lots 1 - 6, Block 3 shall be 24 feet wide with 19-foot paved driving surface and a 3-foot wide sidewalk located directly adjacent to the driving surface.
         (d)   Private drives to serve single family dwelling units in Block 3 shall have a minimum width of 20 feet.
         (e)   Private drives to serve single family dwelling units in Blocks 9 - 11 shall have a minimum width of 20 feet.
      (3)   The minimum cost of landscaping in multiple family projects shall be 2½% of the estimated cost of the building construction based on current Means Construction Data. Landscape materials all live plant materials such as trees and shrubs. Sod, grass seed, fencing, retaining walls, patios, irrigation systems and other physical site and grading work shall not be included.
      (4)   All private open spaces shall be constructed and maintained in accordance with the “Cobblestone Lake Phase II Park Greens and Greenways” plan as prepared by Putman Planning and Design.
      (5)   The exposed foundation of any structure shall be treated with decorative materials to match or accent the primary structure.
      (6)   Two sets of address number shall be required for all dwelling units with rear loaded garages. One set of address numbers shall be placed in a position to be plainly legible and visible from the street fronting the property. The second set shall be placed in a position to be plainly legible and visible from the private drive or alley providing access to the garage.
      (7)   Parking, see §§ 155.370 through 155.379.
      (8)   Maximum impervious surface, see § 155.350.
      (9)   Lots within the Cobblestone Lake 5th and 6th Additions shall be subject to the minimum area requirements:
         (a)   The minimum lot area shall be 2,800 sq. ft.;
         (b)   Side yard setbacks may be zero, provided there ten feet is maintained between two single-family residential structures or between a single-family residential structure and a two-family residential structure and 20 feet between two-family residential structures; and
         (c)   Lot 4, Block 2, Cobblestone Lake 5th Addition shall have a minimum front yard setback of 11 feet from the public street.
      (10)   Lots in Blocks 12 and 13, Cobblestone Lake 3rd Addition, and Cobblestone Lake 6th and 9th Additions shall have a minimum lot width of 34 feet.
(Ord. 703, passed 11-8-01; Am. Ord. 723, passed 4-24-03; Am. Ord. 763, passed 12-9-04; Am. Ord. 804, passed 2-22-07; Am. Ord. 833, passed 2-14-08; Am Ord. 855, passed 3-26-09; Am. Ord. 862, passed 6-11-09; Am. Ord. 945, passed 5-23-13; Am. Ord. 1023, passed 12-8-16; Am. Ord. 1029, passed 7-13-17; Am. Ord. 1047, passed 7-26-18)