Hartgen has undertaken many building surveys for the NYS Department of Transportation, the NYS Education Department, and for various municipalities and private clients.
Little Falls DOT. A survey for the NYS DOT, covering a large area of the north part of the city of Little Falls, in Herkimer County, NY. Included were commercial and residential structures spanning the period c.1820-1940.
Clifton Park DEIS survey. Part of a survey of the cultural resources in Clifton Park, Saratoga County, NY. A general assessment of the range of historic structures present in the town was provided, and illustrations of major house types were presented. Buildings spanned the period c.1720-1930.
Yonkers Waterfront survey. National Register status and eligibility determinations were generated for 525 structures in downtown Yonkers, Westchester County, NY. Included were commercial, residential and industrial structures spanning the period from 1690 to the present.