Since receiving her Master of Architecture from the University of Florida, Ms Simmons has focused on residential and institutional projects which include adaptive re-use, historic preservation, and sustainable design components. Ms Simmons is currently the principal of her own firm, Kristen Simmons Architects; selected projects include the Catbird House Deep Energy Retrofit (to be completed in 2012) and Trinity Church in the City of Boston Restoration and Renovation, while at Goody Clancy, (2002-2006). Ms Simmons is also a consultant with ICF, where she develops and manages the Massachusetts multifamily energy efficiency pilot program. She is a member of the American Institute of Architects and is accredited by the U.S. Green Building Council as a LEED AP BC+C. Kristen Simmons is also trained by the Passive House Institute in America.