The following design standards shall apply to all improvements within any development plan district where Type II design standard review is required. These standards shall be considered in the review process by the planning staff or Plan Commission along with the requirements of the underlying zoning district and the Type I design standards. In the case of a conflict between the provisions of this section and other regulations in this chapter, the more restrictive standard shall apply, unless otherwise determined by the planning staff.
(A) Definitions. The following definitions pertain to Type II design standards:
ARCADE. A permanently affixed covered wall composed of rigid roofing material supported by vertical columns extending along a facade of a building.
CANOPY. A roof-like cover attached to a building generally of a material different from that of the building and which projects from the wall of the building.
CORNICE. Exterior trim on a structure at the meeting of the roof and wall consisting of architectural elements including bed molding, soffit, fascia and crown molding.
FACADE. Any exterior wall of a building.
MANSARD ROOF. A roof having a double slope on all sides, the lower slope being nearly vertical and the upper slope nearly horizontal.
MASS. The three dimensional volume of a building.
PARAPET. A wall which extends above the plane of the adjacent roof.
PITCH. The slope of a roof expressed as a ratio of vertical distance (rise) over horizontal distance (run).
PORTICO. A porch or covered walk at a building entrance or exit consisting of a roof supported by columns.
PRIMARY FACADE. Any facade of a building at least 50% of which is visible from a public street, the Riverwalk or from a customer parking lot for that building.
RELIEF. The projection of shapes and forms from a flat surface.
TRELLIS. An open grating or lattice work of either metal or wood.
WING WALL. A subordinate wall, one end of which is built against an abutment, usually acting as support for the abutment and as a retaining wall.
(B) Facade standards. All primary facades of a building shall be designed with consistent architectural style, detail and trim features. Primary facades of accessory structures have detail, trim features, and an architectural style that is consistent with the primary building.
(1) The horizontal lengths and curves of exterior facades shall be interrupted by recesses and projections. Exterior facades shall be designed to employ the following design treatments;
(a) Buildings in excess of 10,000 square feet (based upon footprint not total square footage):
1. No uninterrupted horizontal length or curve of a non-arcaded facade shall exceed 100 linear feet.
2. No uninterrupted horizontal length or curve of an arcaded facade shall exceed 120 linear feet. Varied lengths and curves are preferred.
3. Projections and recesses shall have a minimum depth of 32 inches.
4. Projections and recesses shall have a minimum width of 48 inches.
(b) Buildings of less than 10,000 square feet (based upon footprint, not total square footage):
1. No uninterrupted horizontal length or curve of a non-arcaded facade shall exceed 50 linear feet.
2. No uninterrupted horizontal length or curve of an arcaded facade shall exceed 80 linear feet.
3. Projections and recesses shall have a minimum depth of 8 inches.
4. Projections and recesses shall have a minimum width of 24 inches.
(2) Each primary facade shall incorporate a minimum of 3 of the following design treatments from subdivisions (a) through (k) hereof and at least one from items (1) through (n) hereof within 50% of its area for buildings in excess of 10,000 square feet, and within 33% of its area for buildings of less than 10,000 square feet.
(a) Arcades with a minimum width of 8 feet clear for buildings in excess of 10,000 square feet and 6 feet clear for buildings of less than 10,000 square feet;
(b) Display windows;
(c) Color banding through the use of colored exterior building materials or paint;
(d) Canopies or porticos;
(e) Roofs which extend (overhang) at least 8 inches beyond the wall;
(f) Sculpted art work;
(g) Raised cornice parapets over doors;
(h) Arches;
(i) Towers;
(j) Landscaping along a primary facade in excess of landscaping otherwise required by this chapter; (The additional landscaping shall be of sufficient quantity to meet the intent of a separate design treatment.)
(k) Color change;
(l) Change in the exterior building material; and
(m) Vertical or horizontal banding of architectural (not color) features.
(C) Roof standards. Roof features shall be in scale with the building and complement the character of adjacent buildings. Roofs shall comply with the following standards:
(1) The roof edge of each primary facade shall have at least one vertical change of at least 3 feet from the predominate roof design. Roof mounted mechanical equipment shall be concealed through the use of parapet walls or enclosures with an architectural and design style consistent with the parent building.
(2) Each roof shall incorporate at least 2 of the following design elements:
(a) Overhangs of not less than 2 feet beyond the supporting walls with a minimum fascia of 8 inches.
(b) Multiple plane slopes on each primary facade;
(c) Three-dimensional cornice treatment which is at least 12 inches in height and contains at least 3 reliefs; or
(d) Vertical roof changes with a minimum change in elevation of 2 feet other than the vertical roof changes required above.
(3) Roofing material shall be constructed of durable high quality material. Use of the following types of roofing materials and designs is prohibited, except as noted:
(a) Asphalt shingles, except laminated 25 year architectural grade asphalt shingles or a higher grade of asphalt shingles;
(b) Mansard roofs and canopies with a vertical distance of less than 8 feet or an angle of less than 25 degrees or an angle greater than 70;
(c) Roofs with less than or equal to a 2 to 12 pitch unless full parapet coverage is used; and
(d) Back-lit awnings used as a mansard or canopy roof.
(D) Material standards.
(1) Exterior building colors and materials shall be integrated into a comprehensive design style for the building. The following materials shall be prohibited:
(a) Smooth concrete masonry units;
(b) Stone construction with a rubble appearance; and
(c) Sheet plywood and other similar paneling products used as exterior building materials.
(2) All facades which face roadways, parking areas or residential districts shall utilize vinyl or aluminum siding for no more than 50% of the facade and shall utilize corrugated metal for no more than 25% of the facade.
(E) Parking structure standards. A minimum of 60% of the area of any primary facade of a parking structure or covered parking facility shall be composed of at least 2 of the following elements.
(1) Transparent windows, with clear or lightly-tinted glass, where businesses are located within the parking structure, at street level along a primary facade of the parking structure;
(2) Display windows;
(3) Decorative metal grille-work or similar detailing which provides texture and partially and/or fully covers the parking structure opening(s);
(4) Art or architectural treatment such as sculpture, mosaic, glass block, opaque art glass or relief work;
(5) Vertical trellis;
(6) Landscaping; or
(7) An entryway plaza which complies with all entryway standards.
(1979 Code, § 151.153) (Ord. 4370, passed 7-20-1998; Am. Ord. 4533, passed 11-6-2000; Am. Ord. 5618, passed 9-11-2017) Penalty, see §
151.999