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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guards, skylights, steeples, flag poles, chimneys, 2. In the B-3, B-5, B-6, TOD-1, and TOD-2
smokestacks, water tanks, or silos may be zones, additions to buildings existing as of
erected above the height limitations herein the effective date of this Code that do not
prescribed. Unenclosed shade structures cumulatively exceed 25% of the building
covering up to 200 square feet in floor area, footprint as of the effective date of this
and other appurtenances associated with Code are not required to meet minimum
rooftop occupancy may be erected to a height building length standards. However, any
not exceed ten feet above the surface of the such additions shall increase conformity
roof. with the standards to the extent
F. Exception for telecommunication towers. practicable.
Where permitted, ground-mounted B. In the B-6 zone. Buildings located in the area
telecommunication towers may be erected east of Freedom Way shall be exempt from the
above the height limitations within the minimum building length requirement.
underlying zone. C. Lots with multiple street frontages. Where a
G. Exception for accessory structures integral minimum building length as a percentage of
to principal uses in the I-L, I-Lb, I-M, I-Mb, street frontage applies to a lot with multiple
and I-H zones. Where an accessory structure street frontages, the street with the highest
is integral to the operation of a principal use in traffic volume shall meet the established
the I-L, I-Lb, I-M, I-Mb, or I-H zone, such standard. In the case of a lot with two street
structure shall not be subject to the height frontages, the second frontage shall meet a
maximums for the zone. Such accessory reduced standard of 40%. If there are more
structures may include smokestacks, chimneys, than two frontages, there is no minimum
cooling towers, water towers, and similar requirement for any frontage beyond the two
features. with the highest traffic volumes.
D. The Planning Board may approve a different
7.6.2 Building length building length to comply with the standards of
A. Additions to existing buildings the City of Portland Design Manual provided
1. In the B-2b, additions to buildings existing that the building length standard is met to the
as of the effective date of this Code that maximum extent practicable.
do not cumulatively exceed 50% of the
building footprint as of the effective date 7.6.3 Landscaped open space ratio
of this Code are not required to meet In the calculation of landscaped open space ratio in
minimum building length standards. the RN-4 and B-2 zones, green roofs may be
However, any such additions shall increase counted as landscaped open space.
conformity with the standards to the
extent practicable. CITY OF PORTLAND LAND USE CODE | 7-23 DIMENSIONAL STANDARDS

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