HomeMy WebLinkAboutItem 2 - Staff Presentation (0470-20)ARCH-0470-2020 (1136 Iris)
Review of an addition to an existing single-family
dwelling on a Contributing List Historic property,
including relocation of the front façade
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Historic Preservation Program Guidelines
Section Guidance
§3.4.1 (d)Alterations to Historic Resources –Additions. Maintain original architectural integrity; closely
match original architecture, in terms of scale, form, massing, rhythm, fenestration, materials,
color and architectural details
§3.4.2 Percent of historic resource to be preserved. Retain at least 75% of the original building
framework, roof, and exterior bearing walls and cladding, in total, and reuse original materials
as feasible…
§3.4.3 Retention of character-defining features. … retain character defining features. New features to
preserve the original architectural character, form, scale, and appearance of the building
§3.4.4 Exterior building changes. … should not introduce new or conflicting architectural elements;
should be architecturally compatible with the original or prevailing architectural character of the
building, its setting and architectural context. … comply with the Secretary of the Interior’s
Standards to complement and be consistent with the original style of the structure. Building
materials used to replicate character-defining features shall be consistent with the original
materials in terms of size, shape, quality and appearance…
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Secretary of the Interior’s Standards (Rehabilitation)
Standard 9:New additions,exterior alterations,or related new construction will not destroy historic
materials,features,and spatial relationships that characterize the property.The new work will be
differentiated from the old and will be compatible with the historic materials,features,size,scale and
proportion,and massing to protect the integrity of the property and its environment.
Recommended Not Recommended
Wood
Replacing a deteriorated wood feature or wood
siding on a primary or other highly-visible elevation
with a new matching wood feature.
Replacing a deteriorated wood feature or wood
siding on a primary or other highly-visible elevation
with a composite substitute material..
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Secretary of the Interior’s Standards (Rehabilitation)
Standard 9:New additions,exterior alterations,or related new construction will not destroy historic
materials,features,and spatial relationships that characterize the property.The new work will be
differentiated from the old and will be compatible with the historic materials,features,size,scale and
proportion,and massing to protect the integrity of the property and its environment.
Recommended Not Recommended
New Addition
Constructing a new addition that results in the least
possible loss of historic materials so that character-
defining features are not obscured, damaged, or
destroyed.
Attaching a new addition in a manner that obscures,
damages, or destroys character-defining features of
the historic building.
Designing a new addition that is compatible with
the historic building.
Designing a new addition that is significantly
different and, thus, incompatible with the historic
building.
Basing the alignment, rhythm, and size of the
window and door openings of the new addition on
those of the historic building.
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Addition
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Secretary of the Interior’s Standards (Rehabilitation)
Standard 9:New additions,exterior alterations,or related new construction will not destroy historic
materials,features,and spatial relationships that characterize the property.The new work will be
differentiated from the old and will be compatible with the historic materials,features,size,scale and
proportion,and massing to protect the integrity of the property and its environment.
Recommended Not Recommended
Porches and Entries
Identifying, retaining, and preserving entrances and
porches and their functional and decorative features
that are important in defining the overall historic
character of the building. The materials themselves
(including masonry, wood, and metal) are significant,
as are their features, such as doors, transoms,
pilasters, columns, balustrades, stairs, roofs, and
projecting canopies.
Removing or substantially changing entrances and
porches which are important in defining the overall
historic character of the building so that, as a result,
the character is diminished
Replacing in kind an entire entrance or porch that is
too deterioriorated to to repair (if the overall form
and detailing are still evident) using the physical
evidence as a model to reproduce the feature. If using
the same kind of material is not feasible, then a
compatible substitute material may be considered.
Removing an entrance or porch that is unrepairable
and not replacing it, or replacing it with a new
entrance or porch that does not match.
Using a substitute material for the replacement that
does not convey the same appearance of the
surviving components of entrance or porch features
or that is physically incompatible
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Porch (Reconstructed)
DIR-0470-2020 (1136 Iris)
Action
Forward a recommendation to the Community Development Director regarding consistency
of a the proposed addition with historical preservation policies and standards