Landmark Brownstone Retrofit to Passiv Haus

I have linked to a couple of articles about new construction Passive House townhouses in apparently "funky" places like Amsterdam or Williamsburg, but now this news from Mother Nature Network: "The Passive House BKLYN Residence, a retrofit project and not a new build, is located in the Park Slope section of Brooklyn.  Park Slope, if you’re not familiar with it, is the heart of 'Brownstone Brooklyn,' an area with little room for architectural funkiness of any sort.  The Passive House BKLYN Residence — expected to be the first townhouse retrofit in the nation to achieve Passive House certification when it’s put to the test in January — is being overseen by Jeremy Shannon, principal at Prospect Architecture and organizer of the NY Passive House meet-up group."  Full article here.