Park Avenue Houses
Also known as: Pyne-Davison Blockfront

Why it's listed
Four Neo-Federal townhouses stand together on Park Avenue between 68th and 69th Streets in Manhattan. They were built between 1909 and 1926 by three architectural firms: McKim, Mead & White designed 680 and 684, Delano & Aldrich designed 686, and Walker & Gillette designed 690. Later architects respected the earlier buildings, so the row shares a rusticated limestone base, Flemish bond brickwork, matching window and cornice heights and a balustraded parapet. Each house still has its own entrance and detailing, from Ionic columns at 680 to the elaborate doorway at 690. The original clients included financier Percy R. Pyne, William Sloane and banker H. P. Davison. The corner house was threatened in 1964 by a plan for a 31-story apartment tower, but it was bought and restored instead. The group was listed as the last intact block of townhouses on Park Avenue and as an outstanding example of early twentieth century townhouse design. Today the houses serve cultural, educational and governmental uses.
Significance in brief: The nomination argues the group is an outstanding example of early twentieth century townhouse design and the last intact block of townhouses on Park Avenue. Three firms, McKim, Mead & White, Walker & Gillette and Delano & Aldrich, matched cornice and window heights, brickwork and base treatment over seventeen years. Each house has been adapted to institutional use.
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 80002708, listed January 3, 1980. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 680, 684, 686 and 690 Park Ave., New York |
|---|---|
| County | Manhattan |
| Listed | January 3, 1980 |
| Reference number | 80002708 |
| Resource type | Building |
| Period of significance | 1900- (specific dates 1909-11, 1916-19, 1925-26) |
| Architect / builder | McKim, Mead & White; Walker & Gillette; Delano & Aldrich |
| Architectural style | Neo-Federal |
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Excellent condition; all four houses are occupied and adapted to institutional use. Interiors at 680 Park Avenue were partly demolished in 1964 and later restored. |
| Acreage | 0.9 |
| Within district | Upper East Side Historic District |
| Coordinates | 40.76769, -73.96592 (NPS GIS) |
What listing means for this property
For a publicly owned building or structure, listing mainly matters when federal funds, permits or licences are involved: projects then go through Section 106 review so effects on the property are considered. Listing also strengthens applications for preservation grants and, for leased income-producing uses, can enable the federal rehabilitation tax credit.
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 80002708.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7137631
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.