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-A (CONT.): RESIDENTIAL ZONE DIMENSIONAL STANDARDS
R-1 R-2 R-32 R-4 R-52, 3 R-5a4 R-66, 7 R-6a13
10 ft. from side
Stepbacks (above 35 ft. when property line property line and 15
abuts a residential zone)(min.) ft. from rear property
line11
35 ft. 35 ft. 35 ft. 35 ft. 35 ft. 35 ft. 45 ft.12 65 ft.
Structure height
(max.) Detached
18 ft. 18 ft. 18 ft. 18 ft. 18 ft. 18 ft. 18 ft.
accessory
Lot coverage (max.) 20% 20% 35% 30% 40% 30% 60%
Landscaped open space ratio (min.) 20%
9 ft. or 40% of the
front facade,
Width of garage opening on front
whichever is greater,
façade (max.)
and in no case more
than 20 ft.
Special needs independent dwelling unit.
See Table 7-B for PRUD standards.
Single-family homes may be built on small lots in the R-5 under small residential lot dimensional requirements under certain conditions. See Table 7-C for R-5 Small
Residential Lot dimensional requirements.
For R-5a, PRUD standards shall apply to PRUDs, multi-family development of 4 or more units, congregate care, and intermediate, extended, or long-term care facilities,
unless noted otherwise in the table above. See Table 7-B for additional standards that apply to these uses.
Applies to 1-, 2-, and 3-family dwellings only.
Alterations to single-family, two-family, and multi-family dwellings in existence as of 6/15/15 shall not result in the creation of any additional dwelling unit of less than 600
square feet of floor area, exclusive of common hallways and storage in basement and attic; and shall not result in any existing dwelling unit being reduced in size to less than
1,000 square feet of floor area, exclusive of common areas and storage in basement and attic.
Subdivisions consisting of horizontally attached dwellings on individual lots are not required to have side yards between such dwellings where a party wall condition will
exist. Horizontally attached dwellings located within a single lot shall be required to meet the applicable side setback requirements at the external lot boundaries of the
subdivision and internal lot boundaries between such dwellings that are not attached to each other. No minimum lot size or width shall be required for individual lots
underlying townhouse (horizontally attached) dwelling types. The applicable minimum lot area per dwelling shall apply to each lot.
Except for long-term and extended care facilities: 10,000 SF for the first 9 residents plus 750 SF for each additional resident, up to a total of 2 ac.
A minimum lot area per intermediate care resident of 250 SF also applies.
Except that a side setback in the R-6 zone may be reduced to zero, provided that the cumulative side yards are not less than 10 ft. A permanent maintenance easement a
minimum of 5 ft. in width shall be provided on the parcel adjacent to the lot line with the reduced side setback.
Does not apply on side streets.
Except as provided under the Fort Sumner Park Height Overlay, the Munjoy Hill Conservation Overlay, and the Bayside Height Overlay.
All R-6 dimensional standards apply in the R-6a unless otherwise indicated. 7-4 | CITY OF PORTLAND LAND USE CODE DIMENSIONAL STANDARDS

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