Design guidelines for applying the criteria for review of Certificates of Appropriateness
(COAs)
shall at a minimum, consider the following architectural criteria:
a. Height - the height of any proposed
alteration or construction should be compatible with
the style and character of the landmark and with surrounding structures in a historic district;
b. Proportions of windows and doors -
The proportions and relationships between doors and
windows should be compatible with the architectural style and character of the landmark;
c. Relationship of Building Masses and
Spaces - The relationship of a structure within a
historic district to the open space between it and adjoining structures should be compatible;
d. Roof Shape - The design of the roof,
fascia, and cornice should be compatible with the
architectural style and character of the landmark;
e. Landscaping - Landscaping should be
compatible with the architectural character and
appearance of the landmark;
f. Scale - The scale of the structure
after alteration, construction, or partial demolition should
be compatible with its architectural style and character and with surrounding structures in a
historic district;
g. Directional Expression - Facades in
historic districts should blend with other structures
with regard to directional expression. Structures in a historic district should be compatible
with
the dominant horizontal or vertical expression of surrounding structures. Directional expression
of a landmark after alteration, construction, or partial demolition should be compatible with its
original architectural style and character;
h. Architectural Details - Architectural
details including types of materials, colors, and
textures should be treated so as to make the landmark compatible with its original architectural
style and character of a landmark or historic district;
i. New Structures - New structures in
an historic district shall be compatible with the
architectural styles and design in said districts.
