John A. Hartford House
Added to the National Register in 1977, and a National Historic Landmark.

The record
| Register name | Hartford, John A., House |
| Property type | Building |
| Address | SW of Valhalla on NY 100, Valhalla, NY |
| County | Westchester County |
| Listed | Dec 22, 1977 |
| Listed for | Commerce |
| Level of significance | National |
| Also known as | Hartford Hall |
| Reference number | 77000987 |
| Style | Tudor Revival architecture |
| Designations | National Historic Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | SW of Valhalla on NY 100, Valhalla, NY |
| Coordinates | 41.0689° N, 73.7903° W · Directions ↗ |
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Reference
Questions people ask
When was John A. Hartford House listed on the National Register?
Dec 22, 1977. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is John A. Hartford House?
SW of Valhalla on NY 100, Valhalla, Westchester County, New York.
Source: National Park Service
Where is the nomination form for John A. Hartford House?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Sources
Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The map point comes from Wikidata. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 77000987. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.