Walter J. Hollien Preservation Architects & Restoration Contractors

Recent & current restoration projects

Preservation Architects & Restoration Contractors
Expert Witness Architect
 Commemorative Architecture
Infrared Thermal Imaging Inspections 
Commercial & Residential Building Inspections
Manufactured Home Foundation Certifications


Elmira Federal Building circa 1902



Designed in the Beaux-Arts Architectural Style the Elmira Federal Building is constructed of Indiana Limestone with marble interiors, It is on the Federal Registery of Historic Buildings. The 1.3 million dollar rehabilitation was funded by a grant from Restore New York State. The Community Development Department of the City of Elmira, New York is currently seeking alternate reuse development of this important historic landmark building of approx. 60,000 square feet. Walter J. Hollien Preservation Architect was the Architect of Record  and the Construction Project Manager of this restoration project for the city of Elmira, New York.



Mills Pond House circa 1838



The Mills Pond House cicra 1838 is a early Greek Revial Manor House. It is the only surviving example of noted Architect Calvin Pollard's work on Long Island. Talbort Hamlin describes Calvin Pollard as one of the most important less known NewYork Architects. His best known works are the Petersburg Virigina Courthouse, Brooklyn Borough Hall, Washington Irving's Tarrytown Residence and his unrealized design for the Washington Moument. The Mills Pond House now serves as the Headquarters for the Smithtown Arts Council. It is on the NYS Registry of Historic Buildings. Client Town of Smithtown, N.Y.



Mount - Hawkins Barn circa 1750



The Mount-Hawkins barn circa 1750 is in Stonybrook, New York. William Sidney Mount (1808-1868) was America's first genre painter. He painted some of his most famous scenes of musicians and barn dances with this barn as the backdrop. The Mount barn is under the stewardship of  The Long Island Museum of American History, Art & Carriages, Stonybrook, New York




Walter J. Hollien Preservation Architect conducted a series of hands on workshops for Architects, Engineers, Restoration Contractors and History Students at historic building sites. The workshops instructed students about the restoration of historic timber framing, historic windows and the restoration and repointing of historic stonework. The workshops were sponsored by The International Heritage Conservation Network.



Howell Living History Farm Barn Restoration (Hand Hewn Beam in forground)



Howell Living History Farm Barn Restoration



LaTourette Grist Mill Restoration


First Presbyterian Church Restoration East Rutherford, New Jersey