Indiana Code Title 36. Local Government § 36-7-11-17

(1) Height.  The height of proposed buildings must be visually compatible with adjacent buildings.

(2) Proportion of building's front facade.  The relationship of the width of a building to the height of the front elevation must be visually compatible to buildings, squares, and places to which it is visually related.

(3) Proportion of openings within the facility.  The relationship of the width of the windows to the height of windows in a building must be visually compatible with buildings, squares, and places to which it is visually related.

(4) Rhythm of solids to voids in front facades.  The relationship of solids to voids in the front facade of a building must be visually compatible with buildings, squares, and places to which it is visually related.

(5) Rhythm of spacing of buildings on streets.  The relationship of a building to the open space between it and adjoining buildings must be visually compatible to the buildings, squares, and places to which it is visually related.

(6) Rhythm of entrances and porch projections.  The relationship of entrances and porch projections to sidewalks of a building must be visually compatible to the buildings, squares, and places to which it is visually related.

(7) Relationship of materials, texture, and color.  The relationship of the materials, texture, and color of the facade of a building must be visually compatible with the predominant materials used in the buildings to which it is visually related.

(8) Roof shapes.  The roof shape of a building must be visually compatible with the buildings to which it is visually related.

(9) Walls of continuity.  Appurtenances of a building, such as walls, wrought iron fences, evergreen landscape masses, and building facades, must form cohesive walls of enclosure along the street if necessary to ensure visual compatibility of the building to the buildings, squares, and places to which it is visually related.

(10) Scale of a building.  The size of a building and the building mass of a building in relation to open spaces, windows, door openings, porches, and balconies must be visually compatible with the buildings, squares, and places to which it is visually related.

(11) Directional expression of front elevation.  A building must be visually compatible with the buildings, squares, and places to which it is visually related in its directional character, including vertical character, horizontal character, or nondirectional character.