Cobblestone Manor
Why it's listed
Cobblestone Manor is a two-story house at 495 North Main Street on the northern edge of Canandaigua, built between about 1835 and 1840. Only its west front is faced in cobblestone; the side and rear walls are rubble stone covered with scored stucco. The Greek Revival design includes a pedimented gable facing the street, a wide frieze, prominent window surrounds, stone quoins at the front corners and a trabeated entrance with sidelights, pilasters and a transom. Early twentieth-century changes added a Colonial Revival porch with fluted Doric columns and a Palladian-style gable window. A cinderblock rear wing and a garage are modern additions. The house was listed as the only remaining cobblestone building in Canandaigua, part of a short-lived building trend on the Lake Ontario plain and along the Erie Canal, where more than 700 such buildings were erected. It is also one of few substantial Greek Revival dwellings in the city. It was originally a residence and now serves as a home for adults.
Significance in brief: The nomination calls it the only surviving example of cobblestone construction in the city of Canandaigua, reflecting a regional building trend of the mid-nineteenth century. It is also a distinctive and relatively substantial example of Greek Revival architecture, a style not widely represented in the city.
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 84002862, listed April 26, 1984. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 495 N. Main St., Canandaigua |
|---|---|
| County | Ontario County |
| Listed | April 26, 1984 |
| Reference number | 84002862 |
| Resource type | Building |
| Architectural style | Greek Revival |
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Originally a residence; now used as a proprietary home for adults. Condition is rated fair, with deterioration noted as a threat. |
| Acreage | 1.5 |
| Coordinates | 42.90229, -77.29131 (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 84002862.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5138822
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.