A. 
The procedures contained in this article shall be utilized in securing consideration and approval of planned unit developments within Vanport Township.
B. 
It is the intent of this procedure to encourage and assist the applicant in achieving the maximum in original design or innovation consistent with modern planning practice and urban development. Such natural features as streams and large trees or tree clusters should be located or incorporated into the plan where possible. The primary objective in all cases is to create a unified neighborhood design through the use of commonly owned ground rather than a series of unrelated plans or a uniform gridiron pattern of streets.
Lot sizes can be varied in accordance with the requirements cited in those sections dealing with planned unit development in Chapter 180, Zoning.
Maximum building coverage of land shall be determined in accordance with requirements in Subsection B of this section. Subsection A, immediately following, defines terms used in Subsection B.
A. 
Definitions.
AVERAGE LOT AREA
The net land area divided by the number of lots developed.
COMMON AREA
The land area set aside for joint recreational (active or passive), aesthetic or density requirements.
FLOOR AREA RATIO
The gross floor area of a building or buildings divided by the area of the lot on which it is placed.
GROSS FLOOR AREA
The sum of the gross horizontal areas of the floors of a structure measured from the exterior faces of the exterior walls or from the center lines of walls separating two structures, including elevator shafts and stairwells at each story; floor space used for mechanical equipment; half-stories; interior balcony or mezzanines; but not including cellars; accessory water tanks or cooling towers; uncovered steps; and terraces, breezeways, open porches and exterior balconies.
NET LAND AREA
The gross land area (including both common areas and lot development) less street area.
NET LOT AREA
The actual size of the individual lots developed.
USABLE OPEN SPACE
An area devoted to outdoor recreational space, greenery and/or services for household activities which are normally carried on outdoors. The area is accessible and available to all occupants of the dwellings. It does not include streets or roadways open to vehicular traffic, or individual parking spaces or loading space.
B. 
Requirements.
(1) 
The maximum allowable floor area to lot area ratios shall be as follows:
(a) 
One-family dwelling: 0.8.
(b) 
Row dwelling: 0.9.
(2) 
The usable open space in a planned unit development shall be flexible, provided that the minimum lot area shall be in accordance with the zoning district requirements established in Chapter 180, Zoning.
(3) 
Maximum density.
(a) 
The maximum density of the minimum lot area shall be in accordance with the zoning district requirements established in Chapter 180, Zoning.
(b) 
The maximum density of the net lot area for one-family dwelling units shall not exceed six units per net lot acre.
(4) 
Allowable premiums for additional open space and/or development amenities. Population density and/or allowable floor area ratios may be increased if the character of the development and/or amenities incorporated in the development warrant such increases, provided that in no case shall population density increase exceed 35% of the density achieved by application of the maximum density requirements of Subsection B(3).
(5) 
Minimum building setback.
(a) 
From street right-of-way.
[1] 
Upon a street is a continuation of a street in another adjoining zoning district, buildings shall be set back from the street line a minimum distance equal to that required for buildings in such other district for a distance of 100 feet into the planned unit development.
[2] 
When a planned unit development is located across a street from property in another zoning district, buildings along such portion of street that is opposite such other zoning district shall be set back from the street line a distance equal to that required in such opposite district.
[3] 
Other than as set forth in Subsections B(5)(a)[1] and [2] above, setback is required.
(b) 
From boundary lines other than street line. Buildings shall be set back from boundary lines of the planned unit development (when other than street lines) a distance equivalent to the maximum required anywhere in Chapter 180, Zoning, for comparable types of structures on the abutting properties.
(6) 
Maximum length of buildings. Buildings shall be limited to 200 feet in length so as to provide for reasonable access to the rear for purposes of garbage and trash collection, access to open space, parking and loading areas and safety.