[R.O. 2011 §405.145; Ord. No. 10-6 §1, 3-8-2010]
A. In
considering an application for a building or demolition permit or
for a certificate of appropriateness, the HPC shall be guided in principle
by the Secretary of the Interior's Standards, as follows, in addition
to any design guidelines in the ordinance designating the landmark
or historic district. Applications, standards for review and design
guidelines shall be available in the office of the City Clerk for
distribution to the public.
1. A property shall be used for its historic purpose or be placed in
an new use that requires minimal change to the defining characteristics
of the building and its site and environment.
2. The historic character of a property shall be retained and preserved.
The removal of historic materials or alteration of features and spaces
that characterize a property shall be avoided.
3. Each property shall be recognized as a physical record of its time,
place and use. Changes that create a false sense of historical development,
such as adding conjectural features or architectural elements from
other buildings, shall not be undertaken.
4. Most properties change over time; those changes that have acquired
historic significance in their own right shall be retained and preserved.
5. Distinctive features, finishes, and construction techniques or examples
of craftsmanship that characterize a historic property shall be preserved.
6. Deteriorated historic features shall be repaired rather than replaced.
Where the severity of deterioration requires replacement of a distinctive
feature, the new feature shall match the old in design, color, texture,
and other visual qualities and, where possible, materials. Replacement
of missing features shall be substantiated by documentary, physical
or pictorial evidence.
7. Chemical or physical treatments, such as sandblasting, that cause
damage to historic materials shall not be used. The surface cleaning
of structures, if appropriate, shall be undertaken using the gentlest
means possible.
8. Significant archaeological resources affected by a project shall
be protected and preserved. If such resources must be disturbed, mitigation
measures shall be undertaken.
9. New additions, exterior alterations, or related new construction
shall not destroy historic materials that characterize the property.
The new work shall be differentiated from the old and shall be compatible
with the massing, size, scale and architectural features to protect
the historic integrity of the property and its environment.
10. New additions and adjacent or related new construction shall be undertaken
in such a manner that if removed in the future, the essential form
and integrity of the historic property and its environment would be
unimpaired.