1. A property will be used as it was historically
or be given a new use which reflects the property's
2. Materials and features from the restoration period
will be retained and preserved. The removal of materials
or alteration of features, spaces, and spatial relationships
that characterize the period will not be undertaken.
3. Each property will be recognized as a physical
record of its time, place, and use. Work needed to stabilize,
consolidate and conserve materials and features from
the restoration period will be physically and visually
compatible, identifiable upon close inspection, and
properly documented for future research.
4. Materials, features, spaces, and finishes that
characterize other historical periods will be documented
prior to their alteration or removal.
5. Distinctive materials, features, finishes, and
construction techniques or examples of craftsmanship
that characterize the restoration period will be preserved.
6. Deteriorated features from the restoration period
will be repaired rather than replaced. Where the severity
of deterioration requires replacement of a distinctive
feature, the new feature will match the old in design,
color, texture, and, where possible, materials.
7. Replacement of missing features from the restoration
period will be substantiated by documentary and physical
evidence. A false sense of history will not be created
by adding conjectural features, features from other
properties, or by combining features that never existed
8. Chemical or physical treatments, if appropriate,
will be undertaken using the gentlest means possible.
Treatments that cause damage to historic materials will
not be used.
9. Archeological resources affected by a project
will be protected and preserved in place. If such resources
must be disturbed, mitigation measures will be undertaken.
10. Designs that were never executed historically
will not be constructed.