Whereas Section 6 of Ordinance 497, amending Ordinance 430 by creating Article XXa, PUD District, establishes certain regulations and guidelines pertaining to accompanying information required on a final site plan and final site plan documents. Now therefore, the following conditions, restrictions, and regulations are adopted as a part of this approval, to wit:
A. General Conditions: The plan shall incorporate a maximum of six hundred eighty (680) residential dwelling units intended for owner occupancy, and which shall be distributed by types and location according to the final site plan as presented. In addition the following general site plan criteria are integrated into and made a part of the final site plan document and its recommendation for approval:
1. Each subdivision, and all streets, street rights-of-way and general development shall adhere to all standards and design criteria set forth in the West Des Moines Subdivision Ordinance.
2. Each development parcel other than those designated as R-1 or R-1-A variety single-family, patio homes or cluster homes (single-family) shall comply with Article XXV (Site Plans) of the West Des Moines Zoning Ordinance, and a final site plan shall be approved by the West Des Moines Planning and Zoning Commission and City Council prior to the initiation of any construction.
3. With the first development proposal, or prior thereto, there shall be submitted to, and approved by the West Des Moines City Engineer, a complete storm water management plan for all open space drainage systems to remain a portion of the development. The plan shall be guided by, and adhere to the West Des Moines Subdivision Ordinance, with provision made for conveyance of the 100-year return frequency rainfall (event), including the provision for on-site temporary detention with discharge equivalent to the existing 5-year return frequency storm.
4. All ground shown as open space or park to be dedicated at no cost to the City of West Des Moines, shall be so dedicated with the platting of contiguous property. Should the City later adopt a mandatory dedication ordinance, the Council may consider granting to the owners a credit for that ground designated as park. Prior to dedication, however, and as a condition of the rezoning approval, such ground prior to its dedication shall be stabilized at a nonerodible slope and velocity for drainage purposes. Nonerodible slope is defined as velocity not to exceed four feet (4') per second. Required slopes and velocities may be achieved by use of gabion drop structures, street culvert crossing structures, or such other methods of good engineering design practice as shall be approved by the City Engineer.
5. Prior to dedication, the developer shall remove all fallen trees, debris, and other obstructions from the drainageway, exclusive of landscaping to be preserved. All areas of any open space way shall, prior to dedication be seeded with a ground cover as determined by the City Engineer, and placed at a grade capable of maintenance by standard rotary mowing equipment.
6. The developers of Meadowview shall be responsible, as part of the development plan, for any necessary changes, modifications to, additions in culvert size, easements and all other costs associated with the completion of drainage and transportation structures or facilities under and over the Chicago and Northwestern Railroad Tracks, and southerly to Jordan Creek.
7. In all areas adjoining open space drainageways, or in all areas involving potential flood hazards, no residential structure shall be erected which has a lowest floor less than one foot (1') above the determined level of the 100-year return frequency rainfall event.
8. The petitioners seeking this rezoning, their successors, or assigns, shall pay all construction and engineering costs for all interior development, including all streets, storm sewers, sanitary sewers, creek improvements, creek crossing structures, City-owned utilities, and other improvements within the planned unit development.
B. Land Use Design Criteria: In addition to the general criteria as stated in subsection A of this Section, the following land use design criteria shall apply to the individual unit designations as set forth:
1. Single-Family Residential (R-1-A and R-1 Types):
a. All developments designated as R-1-A Single-Family Residential in character shall conform to the minimum provision of Article VIII (Single-Family Residential District) of the West Des Moines Zoning Ordinance #430.
b. All development designated as R-1 in character, shall conform to the minimum provisions of Article VII (R-1 Single-Family Residential District) of the West Des Moines Zoning Ordinance.
2. Patio Or Cluster Homes (Single-Family Attached/Detached):
a. All development shown as patio in character, shall incorporate a minimum lot frontage of forty five feet (45'), a minimum of five thousand six hundred (5,600) square feet, a rear yard setback of thirty feet (30'), and a front setback of twenty feet (20'), except that in the case of attached or detached garages, no garage shall be located any closer than twenty five feet (25') to the front lot line.
b. All development shown as cluster housing, shall have a minimum lot frontage of fifty feet (50'), and a minimum lot area of six thousand two hundred fifty (6,250) square feet, and shall abide by all setbacks as established in paragraph a (patio) of subsection B2a.
c. Units may be either detached or bi-attached in character. No patio or cluster unit shall be set closer than two feet (2') to a property line, and all structures other than those attached by a common wall shall have a minimum separation of ten feet (10').
d. Before development shall commence on any patio or cluster segments of the plan, a master plan and unit concept shall be submitted to, and approved by the Planning and Zoning Commission and City Council pursuant to subsection A2 of this Section for recommendation and approval. The site plan information shall contain the following: 1) exterior construction materials; 2) elevations of exteriors of units; and 3) such other design elements as shall be applicable.
3. Townhouses And Quadraminiums:
a. All units set forth as townhomes or quads shall in addition to requirements set forth in subsection A of this Section, shall comply with open space and parking requirements set forth in Articles XXII and XXIII of the West Des Moines Zoning Ordinance. In calculating open space, no ingress/egress drive shall be considered to extend beyond thirty feet (30') of the parking stall nearest the street, whichever shall first occur.
b. No unit shall be located closer than thirty five feet (35') to any interstate or railroad right-of-way, nor any closer than thirty five feet (35') to Sixtieth Street.
c. All quads shall have a minimum thirty foot (30') setback from any public street, and a minimum twenty foot (20') setback from any private access drive other than individual driveways intended to serve a particular unit.
d. All townhomes shall have a minimum thirty foot (30') of setback from a periphery street surrounding the development, except as stated in subsection B3b above, and shall maintain a minimum twenty five foot (25') setback from any internal street(s) where parking is provided in front of the unit.
e. Densities as shown on the final zoning plan, with respect to townhomes and quads are maximum densities permitted, and do not represent an assurance of the total number of units shown. Actual densities shall be based upon the site plan approval pursuant to subsection A2 of this Section, which shall incorporate all provisions of individual unit design, open space, soils, parking, drainage, landscaping, and such additional factors as shall lead to a sound planning and development scheme which integrates a particular segment into an overall neighborhood plan.
C. Phasing: Made a part of this rezoning approval is a condition that the development of the property in accord with the land use plan, be phased in two (2) increments based upon the ability of the major arterial transportation network serving the area to move traffic in a manner providing safety and convenience to all users. The parameters of this phasing are as follows:
1. Phase One development shall not exceed five hundred twenty two (522) units in accord with Exhibit C, on file with the Community Development Department, showing the entire area of rezoning and the first development phase.
2. The petitioners agree that Phase Two development shall not be commenced until such time as the West Des Moines City Council shall initiate reconstruction activities for the Ashworth Road Bridge over Interstate 35, bringing the same from a two (2) lane facility to a four (4) lane facility, or allow the State of Iowa, or Federal Highway Administration or some other entity to initiate construction activities in lieu of the City of West Des Moines.
3. Phase Two development as proposed shall not be initiated by the petitioners until such time as a secondary southern linkage to the property (herein referred to as the Jordan Parkway linkage) shall be brought to a point where its reality is assured, providing access to the property while the Ashworth Road Bridge is under replacement. (Ord. 656, 6-2-1980)