Portland Land Use Code

Citation: Portland Land Use Code
Parent Document: Portland Land Use Code
Jurisdiction: Portland (municipal)
Original Source: https://www.portlandmaine.gov/asset/a5dcd1dc-4117-40b3-b3da-74a56919e14b ↗
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TABLE 7-B: ISLAND ZONE DIMENSIONAL STANDARDS
                                                                                                         I-B Served by             I-B Not Served by
                                                                                                         Public Water &            Public Water &
                                     IR-1                      IR-2                                      Sewer                     Sewer
                                     40,000 SF, except         20,000 SF, except 3,000 SF if a
                    Single-family    60,000 SF if not served   small island lot per Subsection           5,000 SF                  20,000 SF
                                     by public water           7.6.4
                                     40,000 SF, except         20,000 SF, except 3,000 SF if a
                      Two-family     60,000 SF if not served   small island lot per Subsection           5,000 SF                  20,000 SF
 Lot area                            by public water           7.6.4
   (min.)           Three-family     --                        --                                        5,000 SF                  20,000 SF
                     Four-family     --                        --                                        5,000 SF                  20,000 SF
                     Multi-family    --                        --                                        1,200 SF/unit             5,000 SF/unit
                  Nonresidential     40,000 SF                 20,000 SF                                 None                      20,000 SF
                  Street frontage                              50 ft., except 30 ft. if a small island
                                     100 ft.                                                             40 ft.                    40 ft.
                            (min.)                             lot per Subsection 7.6.4
                                                                                                         5 ft. or the average of   5 ft. or the average
                   Front setback                               20 ft. or the average of adjacent         adjacent front yards      of adjacent front
                                     20 ft.
                           (min.)                              front yards, whichever is less            minus 5 ft., whichever    yards minus- 5 ft.,
                                                                                                         is less                   whichever is less
             Principal structures
                   and detached
                                                               25 ft., except 15 ft. if a small island
    Rear                accessory    30 ft.                                                              10 ft.                    10 ft.
                                                               lot per Subsection 7.6.4
 setback               structures
   (min.)     (>250 SF footprint)
             Detached accessory                                5 ft., except 3 ft. if a small island
                                     5 ft.                                                               5 ft.                     5 ft.
              (<250 SF footprint)                              lot per Subsection 7.6.4
                                                               12 ft., except 8 ft. if a small island
             Principal structures
                                                               lot per Subsection 7.6.4. Small
                   and detached
     Side                                                      island lots may reduce one side
                        accessory    20 ft.                                                              10 ft.                    10 ft.
 setback,                                                      setback to no less than 6 ft.
                       structures
  interior                                                     provided that the cumulative side
              (<250 SF footprint)
    (min.)                                                     yards are not less than 16 ft.
             Detached accessory                                5 ft., except 3 ft. if a small island
                                     5 ft.                                                               5 ft.                     5 ft.
               (<250 SF footprint)                             lot per Subsection 7.6.4
             Side setback, corner                              12 ft., except 8 ft. if a small island
                                     20 ft.                                                              10 ft.                    10 ft.
                            (min.)                             lot per Subsection 7.6.4
                 Structure height                              35 ft., except 27 ft. on Little
                                     35 ft.                                                              35 ft.                    35 ft.
                           (max.)                              Diamond Island
   Detached accessory structure
                                     18 ft.                    18 ft.                                    18 ft.                    18 ft.
                  height (max.)
                                                               40%, except 60% if small island
              Lot coverage (max.)    20%                                                                 60%                       60%
                                                               lot per Subsection 7.6.4
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