CPC-2009-598-SP August 6, 2012 DRAFT
3.
Ground Floor Transparency. a)
Along Retail Streets, transparent wall openings, such as storefront windows and doors, shall comprise at least 50% of a building’s street level façade that is between 2 feet to 8 feet from the ground.
b)
Along Active Streets and Paseos, transparent wall openings, such as storefront windows and doors shall comprise at least 35% of the street level façade that is between 2 feet to 8 feet from the ground.
c)
An exception shall be made for older structures that are being renovated if the transparency requirement would render the building structurally infeasible or would compromise the historical integrity or original character of the building.
4.
Ground Floor Facade. To avoid blank walls that would detract from the experience and appearance of an active streetscape there shall be no blank walls (without doors or windows) longer than 50 feet along sidewalks on Active or Retail Streets. Walls with public art installations such as murals shall be exempt.
5.
Ground Floor Retail. a)
All ground floor retail space shall be located either along the street wall or along a courtyard or plaza, provided the retail frontage is not more than 60 feet from the back of sidewalk and is visible from the sidewalk.
b)
Ground floor retail space shall be provided to a depth of at least 25 feet from the front façade and shall include an average 14 feet - 20 feet floor to ceiling height.
c)
Where Retail streets intersect other streets, the ground floor retail space shall wrap the corner onto the other streets.
D. W INDOWS AND GLAZING. 1.
2.
Windows a)
To reduce interior heat gain and improve energy performance the window to wall ratio (exclusive of the ground floor) shall not exceed 40% on the E, W, SW, NW, SE and NE facades unless an alternative façade design can demonstrate through building specific analysis that it provides the same or greater reduction in cooling loads of the building.
b)
All windows on the aforementioned facades shall be shaded by 1’ fins or overhangs or other architectural feature that provides the equivalent shading value unless an alternative design solution can be demonstrated through building specific analysis that it provides the same or greater reduction in cooling loads of the building.
Glazing. a)
All ground-floor window and door glazing shall be transparent and have a 0-10% reflectivity rating.
b)
Glazing on the upper floors shall include one or more of the following: 0-10% reflectivity, etching, sandblasted patterns, fretting, or low-e patterning, shading devices, screen and other barriers to reduce birds’ access to glass, and/or angle the glass between 20-40 degrees from vertical.
E. EXTERIOR LIGHTING. 1.
General Requirements
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