Wilpen Hall
Why it's listed
Built between 1899 and 1900 by the Pittsburgh steel brokerage executive William Penn Snyder and his wife, Mary Cuddy Black Snyder, Wilpen Hall is a three-story sandstone and shingle manor house in Sewickley Heights. Designed by the Pittsburgh architect George S. Orth, it has a gambrel roofline on the east end, a porte cochere on the west, and porches of rectangular stone columns on the north and east. A west addition of about 1925, probably by Robert Maurice Trimble, extended the house. Its importance lies in its design as an early twentieth-century summer estate in the Shingle style, which was popular with wealthy Pittsburgh families in the area. The estate retains a large share of its original forty-three acres of grounds, a barn, farmhouse and cottages, and it is the only remaining great estate in the borough still owned by the family that commissioned it.
Significance in brief: The nomination argues the estate is significant for its architecture, as a well-preserved early twentieth-century summer estate commissioned by a wealthy Pittsburgh family. It states the manor house retains much of its original Shingle style design and that the estate keeps more of its original acreage and outbuildings than other estates in the borough.
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 11000201, listed April 20, 2011. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | 889-895 Blackburn Rd; 201 Scaife Rd, Sewickley Heights |
|---|---|
| County | Allegheny County |
| Listed | April 20, 2011 |
| Reference number | 11000201 |
| Resource type | Building |
| Period of significance | 1899-c.1925 |
| Architect / builder | George S. Orth & Brothers (architect); Trimble, Robert Maurice (presumed, for later additions) |
| Architectural style | Late Victorian/Shingle Style |
| Criteria |
|
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | The estate is still owned and occupied by the family that commissioned it. |
| Acreage | 51 |
| Coordinates | 40.54916, -80.14988 (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 11000201.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q8022870
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.