Logan Furnace Mansion
Why it's listed
Built of coursed stone, the Logan Furnace Mansion near Bellefonte is an L-shaped house with a two-story kitchen wing and a larger main section. John Dunlop built the kitchen wing in 1798-1800 as the first home of his household, and the main section was added around 1818 by the Valentine and Thomas families, who had taken over the Dunlop ironworks. The house is a surviving link to Logan Furnace, which began operating in 1798 and became one of the principal iron producers in Centre County before it closed in 1842. Its main entrance has a semicircular lunette, a wooden keystone and fan tracery in the window above. Fireplaces have been removed and most windows replaced, though original sash sizes and the central stairway remain. Porches were added later in the nineteenth century. The house is now the principal remaining evidence of the furnace and of the early iron industry in the valley.
Significance in brief: The house is significant for its association with the Logan Furnace ironworks, a major local iron producer that operated until 1842. The nomination describes it as the remaining evidence of a once-thriving early Centre County industry. The surviving stone building also reflects the early domestic architecture of the Dunlop and Valentine ironmaster households.
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 77001138, listed April 11, 1977. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | 3 mi. S of Bellefonte on PA 144, Benner Township, Bellefonte |
|---|---|
| County | Centre County |
| Listed | April 11, 1977 |
| Reference number | 77001138 |
| Resource type | Building |
| Period of significance | 1798-1842 |
| Architect / builder | John Dunlop (built house) |
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Interior fireplaces have been removed and windows largely replaced; the property is covered with tin roofing. |
| Acreage | 0.1 |
| Coordinates | 40.87733, -77.76388 (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 77001138.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q15242618
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.