Crest, The (Boundary Increase)
Also known as: Robinson House; Hasbrouk-DeLamater House
No coordinates published for this listing.
Why it's listed
Perched on a hilltop above Duck Cove in Asharoken, Long Island, this Tudor-style mansion at 563 Asharoken Avenue was completed in 1902. Architect Harry E. Donnell designed it for Oakley R. DeLamater, who gave it to his wife, Elizabeth Hasbrouk DeLamater, as a wedding present. The family used it as a summer residence. DeLamater wealth came from the DeLamater Iron Works, whose engineers and machinery were part of the Civil War ironclad Monitor. The house has several Tudor gables, five fireplaces, eight original bedrooms, a servants' wing, cypress trim, cedar shake roofing and hardwood floors. It was lost to unpaid taxes during the Depression and passed through many owners, with the grounds shrinking to about five acres. After a period of neglect, it was restored in the 1990s and again in 2006-2007. Staff of the state preservation office verified that it still retains its historic character, apart from a later three-bay garage attached to the former stable.
Significance in brief: The house is tied to the DeLamater family, whose iron works helped build the Civil War ironclad Monitor, and to the development of the Eaton's Neck and Asharoken estates. It survives nearly as built in 1902 and has been restored. The document does not set out the formal criteria or a period of significance.
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 100008116, listed September 9, 2022. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 563 Asharoken Ave., Huntington |
|---|---|
| County | Suffolk County |
| Listed | September 9, 2022 |
| Reference number | 100008116 |
| Resource type | Building |
| Architect / builder | Harry E. Donnell (architect) |
| Architectural style | Tudor mansion with half-timbering and Tudor gables (no formal style classification stated) |
| Areas of significance | Community Planning and Development, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Restored by the current owners between 2006 and 2007; described as appearing almost exactly as built in 1902, with a later three-bay garage added. In use as a residence. |
| Acreage | 3.39 |
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 100008116.
- Nomination form (PDF, National Archives) — catalog entry
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.