Brookside
Also known as: Lochburn
Why it's listed
Brookside, also called Lochburn, is a large frame house on a roughly two-acre wooded parcel in Upper Nyack, once part of a Hudson River estate. It was built around 1865 as an Italian villa, with a gabled main block, a three-story tower and a second-story bay window. Around 1890, during the ownership of Jersey City merchant, banker and politician John D. Carscallen, the house was enlarged with a south addition, a sweeping verandah and a porte-cochere. Inside, the front rooms were opened into one space with a new staircase and Colonial Revival mantels, columns and pilasters. Original Picturesque-era finishes survive alongside the later work. A c. 1890 carriage barn and a brownstone retaining wall also contribute. The house was listed for its architecture, as a well-preserved example of the large villas built by affluent families along the Hudson. Novelist Winston Churchill finished his manuscript for Richard Carvel there in the later 1890s.
Significance in brief: The property is nominated under Criterion C in the area of architecture as an important local example of nineteenth-century residential design. It expresses both Picturesque-era Italian villa style and Late Victorian Colonial Revival alterations. It retains a high degree of integrity to the 1890s building campaign. It is also linked to novelist Winston Churchill, who finished Richard Carvel there in the later 1890s.
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 12000408, listed July 10, 2012. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 406 N. Broadway, Upper Nyack |
|---|---|
| County | Rockland County |
| Listed | July 10, 2012 |
| Reference number | 12000408 |
| Resource type | Building |
| Period of significance | c. 1865-c. 1890 |
| Architectural style | Mid-19th Century: Italian Villa; Late 19th & 20th Century Revivals: Colonial Revival |
| Criteria |
|
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Still a single dwelling; the carriage house interior has been converted to an apartment. |
| Acreage | 2.2 |
| Coordinates | 41.10768, -73.91783 (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 12000408.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q23091443
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.