Casemate Fort, Whiting Quadrangle
Also known as: Officers Club Bldg. #207; Sentry Booth #220
Why it's listed
Overlooking the Narrows at Fort Hamilton in Brooklyn, the Old Casemate Fort is a C-shaped structure of stone and brick with walls about three feet thick. Plans were drawn in 1819 by Army and Navy officials, the cornerstone was laid in 1825, and construction was supervised by General Bernard, a French engineer. The design is a "walled enceinte" typical of the era of stone fortifications, with a moat-like area and a small sentry house at the entrance. The site had held earlier defences, including a Dutch blockhouse and British fortifications. Since 1938 the building has served as an officers' club, with renovations adding plumbing, heating and wiring and a rooftop recreation hall. In 1958 the western wall was demolished and buried to make room for bridge approaches. The nomination holds that the original design character endures in the exterior and the stone interior construction, making the fort an important military landmark.
Significance in brief: The nomination argues it is a chief military historical landmark. It is a "walled enceinte" from the "era of stone fortifications" built to secure the Narrows and New York Harbor. The site had been strategically important for about 200 years, and the fort's original design character survives despite alterations.
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 74001249, listed August 7, 1974. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | Fort Hamilton, off NY 27, New York |
|---|---|
| County | Brooklyn |
| Listed | August 7, 1974 |
| Reference number | 74001249 |
| Resource type | Building |
| Architect / builder | Built under the supervision of General Bernard, a French engineer employed by the United States |
| Architectural style | Walled enceinte, "era of stone fortifications" |
| Areas of significance | Military, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Good condition; in use since 1938 as the Fort Hamilton Officers Open Mess, with a guard house in the southeastern half. Altered in 1938 and 1958, and the western wall was demolished for Verrazano-Narrows Bridge approaches. |
| Acreage | 2 |
| Coordinates | 40.60863, -74.03227 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
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 74001249.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5048405
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.