With over 20 years of experience pioneering sustainability in design
and environmental stewardship this year’s goal for 1200 Pennsylvania is
to achieve LEED Platinum certification (this is our ninth LEED Platinum project) through intelligent green design. LEED stands for Leadership in Energy and Environmental Design. The house occupies a lot-and-a-half (75’x117’) allowing for a design that could not be accomplished in the traditional fifty foot lot width of East Lawrence.
1200 Pennsylvania utilizes the lot-and-a-half size by creating a courtyard and extruding two forms east and west to maximize the home’s southern exposure. We utilized passive solar design concepts to maximize the performance of the building by trapping heat inside in the winter through the thermal mass of the exposed concrete floor. A roof top solar array produces enough energy to supply the house with electricity in all but the worst conditions. Furthermore, through net metering provided by Westar we are credited for excess energy produced in the daytime that we can draw from at night. The landscaped courtyard includes a rain garden filled with native plants. Every room within the house has full height windows and an abundance of cross ventilation.
LEED is the most widely accepted green building rating system in the US., with Platinum being its highest certification level. The requirements take a uniquely broad approach to sustainability by balancing issues of design process, location & transportation, sustainable sites, energy efficiency, water use, materials & resources, and indoor environmental quality. Examples of how 1200 Pennsylvania complies with LEED’s broad approach to sustainability include the re-development of the site, its close proximity to Downtown Lawrence, the use of recycled and re-purposed materials and finishes that avoid o-zone depleting chemicals.