Fairview Manor
Also known as: Alonzo & Mary E. Flack House
The pin is a point inside the NPS boundary polygon, not a surveyed location.
Why it's listed
Fairview Manor, first called Longue Vue Manor, is a French Eclectic stone residence completed around 1937 on a knoll above the St. Lawrence River in Clayton, New York. The 2-1/2-story house is built of local river rock with 3-foot-thick walls, a slate roof, turrets, dormers and a large river-facing terrace. The estate also has a 50-foot stone tower that once held a working windmill, a grill house, a stone-pillared arbor, a gazebo, and stone gateposts. Carl J. Zimmerman, a New York City industrialist, built it as a summer retreat. He founded Carbola Chemical Company, a talc-mining business that employed many people in the North Country for over 50 years. The property is recognized for its intact architecture, which may reflect Zimmerman's travels, and for its place among the summer estates that shaped the Thousand Islands tourism economy. Walter Anstey is named as builder.
Significance in brief: The nomination argues the property is significant in architecture as an intact interpretation of a European manor house with a French flavor, and in recreation and tourism as a summer estate from the Thousand Islands' wealthy-resident era. It is also tied to Carl J. Zimmerman, the New York City industrialist who founded Carbola Chemical Company, a major regional employer for over 50 years.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 100009291, listed September 5, 2023. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 20 NY 9H, Claverack |
|---|---|
| County | Columbia County |
| Listed | September 5, 2023 |
| Reference number | 100009291 |
| Resource type | Building |
| Period of significance | c.1937 |
| Architect / builder | Anstey, Walter (Builder) |
| Architectural style | French Eclectic |
| Criteria |
|
| Level of significance | Local |
| Status (as stated in the nomination) | The main house is described as very intact, with a 2001 kitchen extension. Two boathouse structures are ruins. Current function is listed as residence, with a restaurant and lodge use in the past. |
| Acreage | 11.87 |
| Coordinates | 42.22490, -73.73270 (NPS GIS) |
What listing means for this property
National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).
Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 100009291.
- Nomination form (PDF, National Archives) — catalog entry
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.