§ 46-64. Design standards in the C-1, C-2, C-3, and C-4 districts.

1.

The following design standards apply to new construction, substantial repair or rehabilitation meant to remedy damage or deterioration of the exterior façade of an existing structure, and additions to an existing structure.

a.

Only those standards that relate to the specific repair, rehabilitation, or addition apply.

b.

These standards do not apply to interior remodeling or improvements.

c.

Buildings that are part of a planned unit development are exempt from the design standards of this section.

d.

No required building permit will be issued except upon submittal of a development plan, as may be required upon determination by the zoning administrator for PZC review and approval in conformance with the procedures set forth in Article 16: Building Permit Application Procedures.

2.

Building design and materials.

a.

It is required that the following building materials not be used as primary surface finish material, but instead, if used, that they be used only as decorative or detail elements or as part of the exterior construction that is not used as a surface finish material:

i.

Corrugated metal;

ii.

Aluminum, steel, or other metal sidings;

iii.

Exposed aggregate (rough finish) concrete wall panels;

iv.

Exterior insulating finish systems (EIFS); especially the use of EIFS as a primary or decorative building material at any point up to four feet in height on a structure's facade;

v.

Plastic;

vi.

Vinyl.

b.

It is required that use of the following building materials be avoided:

i.

Plain concrete block;

ii.

T-111 composite plywood siding.

3.

Entrance design and siting.

a.

It is required that all buildings have a public entrance from the sidewalk along the primary building frontage, and that public entrances be visually distinctive from the remaining portions of the façade along which they are located.

b.

It is required that a pedestrian link be provided to connect to existing public right-of-way sidewalks and any adjacent development to ensure safe pedestrian access between the development and adjacent uses outside the development.

4.

Façade design.

a.

It is required that building facades in excess of 50 feet along public rights-of-way include a repeating pattern with no less than two of the following elements: color change, texture change, material module change, or a wall articulation change of no less than two feet in depth, such as a reveal, pilaster, or projecting rib. It is required that such façade elements repeat at intervals of no more than 40 feet.

b.

It is required that, if used, bright or brilliant colors be used for accent only and be limited to 25 percent of the building façade.

5.

Window design.

a.

It is required that building facades that are adjacent to a public street include windows to maintain a minimum transparency of 30 percent, measured between two and 10 feet in height from grade.

b.

It is required that windows be constructed of clear or lightly tinted glass, and that the use of tinted glass above 20 percent and reflective glass be avoided.

6.

Roof design.

a.

It is required that rooflines of buildings that are over 100 linear feet in façade length be varied, with a variation in roof height occurring no more than every 50 linear feet of building frontage, with a minimum dimension of two feet for vertical variation.

b.

It is required that parapet walls feature three-dimensional cornice treatments or other shadow-creating details along their tops.

c.

It is required that roof-top mechanical and other equipment be screened from public streetscape view.

d.

Green roof, blue roof, and white roof designs are encouraged.

e.

It is required that use of the following roof materials be avoided:

i.

Corrugated metal, not including standing seam metal roofs;

ii.

Reflective surfaces that produce glare, not including solar panels.

(Ord. No. 2542, § 1, 9-12-2017)