With a framework of precast elements supplied by J.W. Peters & Sons (double tees) and Lombard Precast (architectural precast spandrel and wall panels) subcontracting for lead concrete contractor ATMI Precast, plus green glass and limited structural steel, the Greenway Self Park garage comes courtesy of Friedman, parking magnate Myron Warshauer, and architectural firm Cubellis. The Greenway Self Park is unique to the point that Friedman Properties has a patent pending, making it possible to license the design in other locations.
The design and development team embedded into the building's prominent southwest corner a series of six vertically stacked wind turbines from Helix Wind that will produce electricity year-round, directly offset the facility's energy requirements, and power exterior lighting. The turbines' southwest location is meant to capitalize on Chicago's northwest winter and southwest summer winds, and they are estimated to generate 10,000-15,000 kWh per year, regardless of the wind direction or speed.
Designed not to look like a parking garage, the building is meant to blend into its relatively upscale surroundings. On the ground level, it has about 15,000 sq. ft. of retail space; a second-level skybridge will connect the garage to two nearby hotels. In addition, openings between the glass planks allow air to flow naturally through the garage, eliminating the need for forced-air ventilation systems.
Inside the Greenway will be plug-in stations for electric cars, spaces for car-sharing services, parking for bikes, and showers for cyclists. A green roof with landscaped gardens will combat urban heat island effects and control stormwater runoff. As is required to obtain LEED certification, all construction materials for the building were produced within a 500-mile radius.