Seventh Regiment Armory
Also known as: Seventh Regiment Armory National Historic Landmark
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Why it's listed
Occupying a full city block on Park Avenue between 66th and 67th Streets, the Seventh Regiment Armory was built from 1877 to 1880 for New York's Seventh Regiment, known as the 'silk stocking' regiment. Architect Charles W. Clinton gave the brick and granite building a fortified, castle-like character, with towers, crenellation and narrow loopholes. Behind the administration building, a 200-by-300-foot drill room is covered by a wide barrel vault on iron trusses, borrowing the train shed method of construction. Two interiors, the Veterans Room and the Library, were decorated by the Associated Artists under Louis Comfort Tiffany, with contributions from Stanford White and others. The front portion gained additional stories in 1909 and 1930, and the original belfry was removed. The building reflects the regiment's role in the city's military and social life, from the Civil War through the world wars, and it continues to serve the regiment and host public events.
Significance in brief: The armory is an important Park Avenue landmark tied to the military and social history of New York's 'silk stocking' Seventh Regiment. Architect Charles W. Clinton combined a castle-like romantic revival style with advanced train-shed construction for the drill hall. Its Veterans Room and Library preserve interior work by the Associated Artists led by Louis Comfort Tiffany, including Stanford White.
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 75001208, listed April 14, 1975. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 643 Park Ave., New York |
|---|---|
| County | Manhattan |
| Listed | April 14, 1975 |
| Reference number | 75001208 |
| Resource type | Building |
| Period of significance | 1877-1880 |
| Architect / builder | Charles W. Clinton |
| Architectural style | Romantic revival, castle-like fortified style with Italian influence |
| Areas of significance | Military, Architecture |
| Level of significance | National |
| National Historic Landmark | Yes, designated February 24, 1986 |
| Status (as stated in the nomination) | Listed in excellent condition, occupied and still owned and actively used by the Seventh Regiment for military and social events; the exterior is largely intact apart from added upper stories. |
| Acreage | 4 |
| Within district | Upper East Side Historic District (Boundary Increase) |
| Coordinates | 40.76725, -73.96552 (NPS GIS) |
What listing means for this property
For a publicly owned building or structure, listing mainly matters when federal funds, permits or licences are involved: projects then go through Section 106 review so effects on the property are considered. Listing also strengthens applications for preservation grants and, for leased income-producing uses, can enable the federal rehabilitation tax credit.
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 75001208.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7457745
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.