Keeper's House at Williamsbridge Reservoir
Why it's listed
Built around 1889 in the Norwood section of the Bronx, this L-shaped granite house served as the home and office of the keeper of the Williamsbridge Reservoir. Plans were approved by aqueduct engineer George W. Birdsall. The reservoir was part of the Bronx and Byram water supply system, which supplemented the Croton system from 1890 to 1906 and helped make Bronx development possible. The house is the only known surviving building of New York's historic water system constructed as a keeper's residence rather than a gatehouse or service facility. Its walls are quarry-faced granite ashlar under a slate roof, and a separate west door once led directly into the keeper's office. After the reservoir was drained in 1925 and turned into a park, the house was sold to a private owner in 1946 and altered, including steel casement windows and a bronze front door. It is recognized for its role in the city's water history and as a sturdy example of Victorian-era utilitarian stone construction.
Significance in brief: It is the only surviving building of the Bronx and Byram water supply system, which supplemented New York's Croton supply from 1890 to 1906, and it is tied to the city's public water works history (Criterion A). It is also a good example of late-nineteenth-century utilitarian civic and vernacular stone architecture that keeps much of its original massing, form and materials (Criterion C). The nomination argues for local significance.
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 99001131, listed September 24, 1999. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 3400 Reservoir Oval, Bronx |
|---|---|
| County | The Bronx |
| Listed | September 24, 1999 |
| Reference number | 99001131 |
| Resource type | Building |
| Period of significance | 1889-1925 |
| Architect / builder | George W. Birdsall, engineer |
| Architectural style | Late Victorian/vernacular |
| Criteria |
|
| Areas of significance | Community Planning and Development, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Listed current function is vacant; the form notes a preservation organization bought it in 1998 and plans to restore it as a neighborhood improvement center. |
| Acreage | 0.9 |
| Coordinates | 40.87884, -73.87567 (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.
Noted as vacant in the nomination. Nomination documents can be decades old; current status may differ. If you are considering buying an empty listed property, read the due-diligence checklist.
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 99001131.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6383186
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.