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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D. Acquired significance. Changes which may structure, object, or site. New work shall be
have taken place in the course of time are differentiated from the old and shall be
evidence of the history and development of the compatible with the size, scale, color, material,
building, structure, object, or site. Changes that and character of the building, structure, object,
have acquired significance in their own right or site. Contemporary design for alterations
shall be retained and preserved. and additions shall not be discouraged when
E. Distinctive features. Distinctive features, such alterations and additions do not destroy
finishes, and construction techniques or significant materials or features that
examples of skilled craftsmanship which characterize the building, structure, object, or
characterize the building, structure, object, or site.
site shall be retained and preserved. J. Reversibility. Wherever possible, new
F. Repair rather than replace. Deteriorated additions or alterations to the building,
historic features shall be repaired rather than structure, object, or site shall be undertaken in
replaced wherever feasible. Where the severity such a manner that, if such additions or
of deterioration requires replacement of a alterations were to be removed in the future,
distinctive feature, the new feature should the essential form and integrity of the building,
match the feature being replaced in structure, object, or site would be unimpaired.
composition, design, texture, and other visual
qualities and, where possible, materials. Repair 16.6.4 Standards for review of additions and new
or replacement of missing historic features construction
should be based on accurate duplications of In considering an application involving additions or
features, substantiated by documentary, new construction, the reviewing authority shall
physical, or pictorial evidence. approve the application only upon finding that it
G. Surface cleaning. The surface cleaning of the meets the following standards:
building, structure, or object, if appropriate, A. Scale and form
shall be undertaken with the gentlest means 1. Height. The height of the addition or new
possible. Chemical or physical treatments, such construction shall be visually compatible
as sandblasting, that cause damage to historic with the contributing buildings, structures,
materials shall not be undertaken. objects, and sites of the historic
H. Archaeological resources. Every reasonable designation when viewed from any street
effort shall be made to protect and preserve or public open space.
significant archaeological resources affected by 2. Width. The width of the addition or new
or adjacent to any project. If resources must be construction shall be visually compatible
disturbed, mitigation measures shall be with the contributing buildings, structures,
undertaken. objects, and sites of the historic
I. Differentiation and contemporary design. designation when viewed from any street
Alterations and additions shall not destroy the or public open space.
character-defining features of the building, 16-12 | CITY OF PORTLAND LAND USE CODE HISTORIC PRESERVATION

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