Knipe-Johnson Farm
The pin is a point inside the NPS boundary polygon, not a surveyed location.
Why it's listed
Located at the crossroads of Dekalb Pike and Welsh Road in Upper Gwynedd Township, the farm holds a stone residence built around 1840, a stone Pennsylvania bank barn, and a springhouse dating to about 1790. The residence is a two-story, side-gabled building in a simple Georgian style, with a central double-cell core and later stone and concrete block additions. The barn retains its stone construction and banked entrance. The farm is regarded as an example of a mid-nineteenth-century Montgomery County farmstead, with about 108 acres of cropland and woodland still surrounding the complex. Its significance lies in its architecture, its agricultural history, and its archaeological potential. Tax records point to an earlier wooden dwelling on the site from the 1790s, and the springhouse may have served that house. The property was used for dairy and grain farming through the nineteenth century, with production shifting toward dairy and hay after railroad access opened the Philadelphia market.
Significance in brief: The nomination argues the farm is significant for its association with Montgomery County and southeastern Pennsylvania agriculture, and for its Georgian double-cell residence and Pennsylvania bank barn under architectural criteria. It also cites the springhouse and early tax records as indicating potential for historic archaeology, since an earlier 1790s dwelling stood on the property.
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 00001346, listed November 8, 2000. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | 606 DeKalb Pike, Upper Gywnedd Township |
|---|---|
| County | Montgomery County |
| Listed | November 8, 2000 |
| Reference number | 00001346 |
| Resource type | Building |
| Period of significance | c1790 1949 |
| Architectural style | Colonial/Georgian |
| Criteria |
|
| Areas of significance | Agriculture, Architecture, Historic - Non-Aboriginal |
| Level of significance | Local |
| Status (as stated in the nomination) | Contributing resources include the residence, barn, springhouse, and three agricultural support buildings; a modern metal storage building does not contribute. |
| Acreage | 108 |
| Coordinates | 40.21655, -75.25020 (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.
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 00001346.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q15238669
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.