Kennett Square Historic District
Why it's listed
Centered on the crossroads of Union and State streets in Kennett Square, Chester County, this district holds about 565 buildings, most of them brick or stone and built between the early nineteenth century and 1938. Its commercial core grew after the borough was incorporated in 1855 and the Philadelphia and Baltimore Central Railroad reached the town. Blocks such as the Unicorn Block of 1877 and the Chalfant block of 1882 still anchor the main intersection, and many storefronts continue in shop use. The district also preserves industrial works, including the American Road Machine Company complex on South Broad Street and an 1903 condensed-milk plant on Birch Street. Mushroom growing, begun in the 1890s, is represented by an early growing house of about 1900. Architecturally the district shows Georgian, Federal, Italianate, Queen Anne and Colonial Revival styles, many built by local builders from pattern books. Its Kennett Consolidated School of 1930-31 was funded largely by Pierre S. du Pont.
Significance in brief: The nomination argues the district is significant for its commercial role serving the surrounding agricultural area, for its industrial buildings tied to the American Road Machine Company, condensed-milk plant and mushroom industry, and for its architecture, which shows a continuous evolution from Georgian and Federal styles through Italianate, Queen Anne and Colonial Revival. It describes the district as having a high level of integrity, with about 10 percent non-contributing buildings.
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 89001052, listed August 18, 1989. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence high).
Key facts
| Address | Roughly bounded by Sickles, Willow, Mullberry, Broad, South, Union, Cedar, Lafayette, State, and Washington, Kennett Square |
|---|---|
| County | Chester County |
| Listed | August 18, 1989 |
| Reference number | 89001052 |
| Resource type | District |
| Period of significance | 1800-1938 |
| Architect / builder | Various |
| Architectural style | Federal, Gothic, Italianate, Queen Anne, Stick, Colonial Revival |
| Criteria |
|
| Areas of significance | Industry, Commerce, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Most buildings are in use; the document notes many commercial buildings still contain shops and that the Kennett Consolidated School has been in continuous use since 1931. |
| Acreage | 137 |
| Coordinates | 39.84433, -75.71170 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
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 89001052.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6390881
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.