Washingtonian Hall
Also known as: Amos Patterson House
Why it's listed
Washingtonian Hall is a two-story, five-bay frame house on the north bank of the Susquehanna River in Endwell, Broome County. Amos Patterson, an early proprietor of the Boston Purchase, built it in 1799-1800 in the Federal style, with a Tuscan-Doric entrance porch, a Palladian window and a modillioned cornice. In 1830 it became an inn, and in 1842 it was named Washingtonian Hall in sympathy with the temperance movement. Judge Thomas MacClary bought it in 1924, moved it forty feet northwest onto a new foundation, and renovated it in the Colonial Revival taste. He added a sun porch, a porte cochere, a carriage barn, a horse barn, a pergola, a garden house, a brick driveway and a picket fence. The house is valued as an early and distinguished Federal style residence, and the 1920s changes are treated as part of its architectural history. The property covers about one acre.
Significance in brief: The house is argued to be an exceptional and early example of Federal style architecture in the eastern Southern Tier of New York. It also has added significance for its sympathetic 1920s Colonial Revival additions, outbuildings and landscape elements. It has long been regarded as one of the region's oldest and most distinguished settlement-era residences.
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 96000134, listed February 23, 1996. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 3725 River Rd., Endwell |
|---|---|
| County | Broome County |
| Listed | February 23, 1996 |
| Reference number | 96000134 |
| Resource type | Building |
| Period of significance | 1799 - 1925 |
| Architectural style | Early Republic / Federal; Late 19th and 20th Century Revivals / Colonial Revival |
| Criteria |
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| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Current function is listed as single dwelling; the property is privately owned. |
| Acreage | 1 |
| Coordinates | 42.11092, -76.00401 (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 96000134.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7972596
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.