AEI taps Hartman-Cox, Grunley for new headquarters → October 04, 2013 The American Enterprise Institute will launch a $40 million renovation of the former National Trust for Historic Preservation property at Dupont Circle. Image Source: Washington Business Journal1789 Massachussetts Avenue NW “The National Trust for Historic Preservation’s former Dupont Circle headquarters is being primed for a major overhaul...... AEI has retained Grunley Construction Co. to oversee the renovations, slated to include new mechanical and electrical systems, a restored limestone facade and new level below the building’s existing basement. The improvements were designed by Hartman-Cox Architects and are slated to be completed by August 2015.” — Washington Business Journal click for full article