Substation 409
Also known as: Stanton Street Substation
Why it's listed
Substation 409, known as the Stanton Street Substation, is a rectangular two-story masonry building at 163 Essex Street on Manhattan's Lower East Side. Built in 1936 for the city-owned IND subway system, it converts alternating current purchased from Con Edison into the low-voltage direct current that runs the trains. It remains in service. Its Art Deco facade uses patterned brick, limestone coping, a chevron and diamond frieze, and a carved limestone doorway surround with stylized lettering, which together hide the building's industrial purpose. Inside is a windowless ground-floor hall with a crane, an original telephone booth and alarm bells, plus a well-lit second floor used for offices and equipment storage. Later additions, including a metal louver and roll-down doors, are judged detrimental but minor. The building was listed for its part in subway power supply and engineering, and for its architectural design as a representative IND substation. It was earlier counted in the Lower East Side Historic District.
Significance in brief: It is significant for its role in powering the subway, converting high-voltage AC from Con Edison to low-voltage DC for trains, under transportation, community planning and engineering. It also has a highly articulated Art Deco facade of brick and limestone that masks its function. Its exterior and interior retain overall integrity despite later changes.
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 06000020, listed February 9, 2006. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 163 Essex St., New York |
|---|---|
| County | Manhattan |
| Listed | February 9, 2006 |
| Reference number | 06000020 |
| Resource type | Structure |
| Period of significance | 1936-1940 (IND Period) |
| Architectural style | Modern Movement/Art Deco |
| Criteria |
|
| Areas of significance | Transportation, Art, Engineering, Community Planning and Development |
| Level of significance | Local |
| Status (as stated in the nomination) | Still in service providing power to subway lines; original mercury arc rectifiers have been replaced with solid state rectifiers. |
| Acreage | 0.9 |
| Within district | Lower East Side Historic District |
| Coordinates | 40.72139, -73.98712 (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 06000020.
- Nomination form (PDF, National Archives) — catalog entry
- Wikidata Q6134973
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.