This is a new stone & glass greenhouse built on the grounds of an historic limestone Collegiate Gothic estate listed in the National Register of Historic Places and originally designed in 1929 by Benno Janssen. The greenhouse was designed to match the style of the existing structures on the estate. The project also includes renovation of 23,000 sq. ft. existing house, a 7,000 sq. ft. limestone addition in the style of the original, interior decoration and extensive sitework, as well as the renovation of a separate 9,000 square foot staff residence.