Lansdale Silk Hosiery Company-Interstate Hosiery Mills, Inc.
Why it's listed
Located on South Line Street in Lansdale Borough, this red brick factory complex was begun in 1922 by Lansdale Silk Hosiery Company to produce full-fashioned silk hosiery. The original building opened in November 1922 with seven full-fashioned legging machines and two footer machines, and the plant expanded through additions in 1926, 1928 and 1929. In 1929 it was acquired by Interstate Hosiery Mills, Inc. of New York, which erected a three-story brick manufacturing building fronting S. Line Street in 1932 and added dyeing and finishing operations. Production ceased around 1954, after which the plant was used for sweater manufacturing and later textile finishing. The buildings are significant for their association with Philadelphia-area hosiery manufacturing and the fully integrated production system used in Montgomery County. The complex is noted for its unified brick vocabulary and open, column-supported interiors.
Significance in brief: The nomination argues the factory is significant under Criterion A in the area of Industry for its association with silk hosiery manufacturing, a sub-sector of southeastern Pennsylvania's textile industry. It was built by Lansdale Silk Hosiery Company and later operated by Interstate Hosiery Mills, Inc., producing full-fashioned women's hosiery into the 1950s. The factory's sustained growth and fully integrated production method are presented as representative of the region's industry.
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 04001289, listed December 3, 2004. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence high).
Key facts
| Address | 200 S. Line St., Lansdale |
|---|---|
| County | Montgomery County |
| Listed | December 3, 2004 |
| Reference number | 04001289 |
| Resource type | Building |
| Period of significance | 1922-1954 |
| Architectural style | Commercial Style |
| Criteria |
|
| Areas of significance | Industry |
| Level of significance | Local |
| Status (as stated in the nomination) | The entire plant is described as currently vacant, with rehabilitation in the planning stages. |
| Acreage | 3.1 |
| Coordinates | 40.23936, -75.28129 (NPS GIS) |
What listing means for this property
For an income-producing building, listing (individually or as a contributing building in a district) is the gateway to the 20% federal rehabilitation tax credit on qualified rehabilitation costs, often stackable with state credits. Work claiming the credit must follow the Secretary of the Interior's Standards and be approved in advance.
Listing does not restrict a private owner acting without federal money or permits; where federal funding or licensing is involved, Section 106 review applies.
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 04001289.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6487341
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.