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Section 22-208 Common areas.
If common areas are used, the following shall apply: (a) A townhouse development allows individual lot areas which may have less than the minimum lot area for dwelling units required in the zoning district from which the townhouse zoning district was created; provided, however, that land area at least equal to the reduction in each individual lot area shall be placed in common areas or open space. (b) The land in streets, common off-street parking areas, and storm drainage detention facilities shall not be included as part of the open space or common areas requirement. However, full credit for lot reduction shall be allowed for detention facilities meeting the following criteria: (1) The maximum depth of the detention facility shall not exceed two and one-half (2 1/2) feet below the existing ground elevation measured beneath the rim of the depression. (2) The detention facility shall be designed and constructed to drain completely after each rain event. (3) The detention facility shall be designed and constructed with a minimum of three to one (3:1) slide slopes. (4) The detention facility shall be grassed or sodded or both. (5) Any other unique detention facility that is designed to be usable and maintained for recreation and/or landscaping features may be allowed for lot reduction credit if approved by the city engineer to meet this intent. In addition, each two (2) square feet of existing and/or natural water surface or periodically flooded (based upon the one hundred (100) year flood contour elevation) or inundated land may be credited as one (1) square foot of land area for lot reduction purposes. Land below the one hundred (100) year flood elevation can only be substituted for one-half (1/2) of the required open space or common areas. (c) The plan for townhouse development shall provide for ownership, maintenance, and control of common areas and open space. (d) Within districts allowing townhouse development, the usable common area or open space shall be fully credited to calculations of density. (Ord. of 9-22-86(1), III; Ord. of 12-23-96(3), IV)
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