Chartreuse Blog


Courthouse Square: Sustainable Design in SD
December 2, 2009, 2:21 pm
Filed under: Green Projects | Tags: , ,

Courthouse Square, a five-story office and retail building located in downtown Sioux Falls, is the second LEED Gold building in the state of South Dakota.  Designed by Koch Hazard Architects, it incorporates a number of environmentally significant systems and technologies including daylighting, renewable energy and geothermal templification, displacement ventilation, radiant heating and cooling, task lighting, low-emitting materials, and indoor chemical and pollutant source control.  78% of the building’s materials are regionally (within 500 miles) harvested and manufactured including the quartzite stone and architectural precast concrete façade.  Water conservation measures, including waterless urinals, save 140,000 gallons per year.  The design has far exceeded LEED Gold standards and is one of three projects nationally to win the 2006 GSA Environmental Award.1

The exterior of Courthouse Square was designed to respond to the neighboring US Courthouse without overwhelming it, despite its size.  A two story arcade of local quartzite reflects the tall arched windows of the historic courthouse across the street.  The 3rd and 4th stories above incorporate wide windows spaced in a system of architectural concrete, and the 5th story is set back behind a mansard style roof with elegant dormer windows reducing the apparent size of the building.

Photos by Stephen Parezo