Portland City Code ch. 14

Citation: Portland City Code ch. 14
Parent Document: Portland City Code ch. 14
Jurisdiction: Portland (municipal)
Original Source: https://www.portlandmaine.gov/asset/ae8cabd1-66eb-4a1c-9224-92bbca5e792f ↗
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TABLE 7-D (CONT.): ISLAND ZONE DIMENSIONAL STANDARDS
                                                                                                                  I-B10
                                                                                                                  Served by                Not Served by
                                                                                                                  Public Water &           Public Water &
                                                    IR-1                IR-2                IR-3                  Sewer                    Sewer
                                                    20 ft.5             20 ft.5             20 ft. 9              10 ft.
       Side            Detached accessory
    setback                                         15 ft.5             15 ft. 5            15 ft. 9              10 ft.
                        (< 250 SF footprint)
      (min.)
                               On side street       20 ft.5             20 ft.5             20 ft. 9              10 ft.
                                                                        35 ft.
Structure                                                               For Little
                                                    35 ft.                                  35 ft.                35 ft.
   height                                                               Diamond
    (max.)                                                              Island: 27 ft.
                       Accessory detached           18 ft.              18 ft.              18 ft.                18 ft.
                        Lot coverage (max.)         20%                 20%                 20%                   50%
   PRUDs shall consist of detached dwellings.
   60,000 SF if not served by public water.
   For PRUDs, minimum lot area shall be reduced up to 50% provided there is an equivalent corresponding increase in common or public open space that is
usable for passive or active recreational opportunities or that serves as a buffer between buildings or between the development and the surrounding
neighborhood.
   Except 1 dwelling unit per 40,000 SF of net land area for PRUDs in IR-1 and 20,000 SF of net land area in for PRUDs IR-2.
   For PRUDS, standard shall be reduced up to 50%. For accessory structures in the IR-1, IR-2, and I-B zones, side setbacks from principal structures shall be 5
feet.
   Except that the minimum lot size per dwelling unit shall be reduced by the amounts specified below, to a minimum lot size of 35,000 SF per dwelling unit,
provided that the Planning Board finds that the development meets the following criteria: a. The minimum lot size per dwelling unit shall be reduced by 5,000
SF if a public off-island water source provides 75% of the water needs of the development. b. The minimum lot size per dwelling unit shall be reduced by 2,500
SF if the development provides appropriate permanent restrictions or other agreements precluding the use, maintenance and parking of all private motor
vehicles exclusive of construction and common service vehicles.
   The maximum density for a PUD shall be based on the applicable minimum lot size for each use as measured in terms of net area. For purposes of
calculating density, if separately described lots exceed the applicable minimum lot size, the excess area shall not be credited toward the minimum lot size for
any other use.
   Except where the Planning Board finds that the development has an adequate street network to permit access for pedestrians and emergency service
vehicles.
   When adjoining any external property boundary.
    All I-B standards apply for lots served by public water and sewer and lots not served by public water and sewer unless otherwise indicated.
   In the IR-3, the minimum lot area for buildings containing both residential and nonresidential uses shall be cumulative. Where there are two or more
residential uses contained in a building, the minimum lot area shall be the larger of the applicable minimum lot sizes. CITY OF PORTLAND LAND USE CODE | 7-7 DIMENSIONAL STANDARDS
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