How density and development standards are applied

Calculation of Permissible Densities. The area in connection with which the permissible number of dwelling units shall be calculated shall consist of all that land owned or controlled by the applicant designated in the permit application as part of the land development for which the permit is sought. A separate calculation shall be made for the lands in areas that are contained in different residential density districts where the application is made for more than two dwelling units and the land area designated in the permit application comes within more than one residential district. The number of permissible dwelling units shall include dwelling units previously authorized, or constructed, within the area so designated in the application.Calculation of Lot or Parcel Area. For purposes of determining whether minimum parcel area requirements are satisfied, lots and parcels shall not include adjoining streets or commonly held or used areas, such as dedicated open space, parking lots, or like facilities.Open Space. When a subdivision meeting the density and parcel area requirements of Sec. 8-4.4, results in the designation of areas within the subdivision for open space use, the areas shall be designated on the final subdivision map as permanent open space, and in that case, upon approval of the final subdivision map the areas shall automatically be transferred to Open District for zoning purposes.Plot Plans Where Subdivision Approval Not Sought. Where a permit is sought for residential development containing fewer dwelling units than are permissible on the lot or parcel in the residential density district in which the lot or parcel is located, and no subdivision approval is sought, the applicant shall submit a plot plan which shall show that the future subdivision of the lot or parcel, or that the future location of other structures on the lot or parcel, can be done in a manner that will conform to the standards established in this Chapter. The plot plan shall be filed by the Planning Department in such a manner that it will be available in the future to the Department and to any subsequent purchaser from the applicant to determine the future permissible development on the lot or parcel.The developer may deviate from the plot plan filed with the Planning Commission provided the deviation will be an improvement over the original plan submitted.Parcels Containing Existing Development. No parcel shall be created subsequent to September 1, 1972 which is occupied by existing dwelling units unless the parcel created is large enough to meet the density and acreage requirements for the existing dwelling units in the density district in which it is located.Fractional Units. When the density calculation results in a fractional unit of 65% or more of a unit, the allowable density may be established at the next higher number of units.