Tianderah
Why it's listed
Perched on a hilltop above Gilbertsville in Otsego County, Tianderah is a large summer house of rough-faced blue-stone and shingle, set within a landscaped estate of roughly thirty-five acres that also holds a carriage shed and a carriage house. St. Louis businessman N.C. Chapman, who had spent boyhood summers in the village, commissioned it in 1885 from Boston architect William Ralph Emerson. Local materials were used, about fifty laborers worked on it, and many skilled workers came from the Boston area. The design combines a steep gambrel roof drawn from New England farmhouses with Roman-arched dormers and porch, colonial-style interior woodwork and a Gothic-inspired entrance porch. Emerson designed only two all-masonry houses, and this one is regarded as a distinctive example of his shingle-style work. The house has changed little since construction, apart from heating and lighting upgrades and asphalt roof shingles, and it remains a recognized local landmark.
Significance in brief: The nomination presents it as a distinctive, unusual work by Emerson, a pioneer of the shingle style, and one of only two all-masonry houses he designed. It blends colonial vernacular forms with Richardsonian Romanesque, English Renaissance and Gothic Revival motifs. It is also valued as a fine, virtually unchanged example of late nineteenth-century estate architecture and a local landmark.
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 78001894, listed November 2, 1978. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | Off NY 51, Gilbertsville |
|---|---|
| County | Otsego County |
| Listed | November 2, 1978 |
| Reference number | 78001894 |
| Resource type | Building |
| Period of significance | 1885-1887 |
| Architect / builder | William Ralph Emerson (architect); John H. Watson (builder); Ernest W. Bowditch (landscaping firm) |
| Architectural style | Shingle style, with colonial, Richardsonian Romanesque, English Renaissance and Gothic Revival elements |
| Areas of significance | Landscape Architecture, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Described as virtually unchanged in appearance and setting; the only noted alterations are heating and lighting improvements and asphalt shingles over the original wooden shingles. |
| Acreage | 33 |
| Within district | Gilbertsville Historic District (Boundary Increase) |
| Coordinates | 42.46372, -75.31494 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
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 78001894.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7800166
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.