Commandant's Quarters
Also known as: Quarters "A"

Why it's listed
Brick residence at the Philadelphia Naval Base, built between August 1874 and September 1875 with a slate roof and stone and concrete foundations. It is three stories high, with a square tower, gabled roofs, bracketed eaves, and segmental-arched windows grouped in twos and threes. The Navy assigned it to the civil engineer developing the League Island site and later to the Captain of the Yard, who lived there until 1960. It is regarded as the first set of quarters built in the Navy Yard. A 1901 porch wraps the north and east sides. The building is representative of the Italian Villa style, which was popular in the mid-nineteenth century, though its 1875 date was late for that style. It has since been converted into a Naval Historical Museum depicting the development of the Navy and the Naval Base.
Significance in brief: The nomination argues the building is the first set of quarters built in the Navy Yard and is a good example of the mid-nineteenth-century Italian Villa style. It is also associated with the Navy's early development of the League Island site. The building was noted in the Picture History of the U.S. Navy.
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 76001661, listed June 3, 1976. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | U.S. Naval Base, Philadelphia |
|---|---|
| County | Philadelphia |
| Listed | June 3, 1976 |
| Reference number | 76001661 |
| Resource type | Building |
| Period of significance | 1875 |
| Architectural style | Italian Villa |
| Areas of significance | Military, Architecture |
| Level of significance | National |
| Status (as stated in the nomination) | Converted to a permanent Naval Historical Museum; in good condition with interior and exterior repairs described. |
| Acreage | 0.2 |
| Within district | Philadelphia Naval Shipyard Historic District |
| Coordinates | 39.89684, -75.17695 (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 76001661.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5152133
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.