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Harbor House
Photo: DanTD, CC BY-SA 4.0, via Wikimedia Commons · tap to enlarge
National Register of Historic Places

Harbor House

Also known as George C. Case Estate

A district of 2 historic buildingsOn the Register since 1993
Late 19th and Early 20th Century RevivalsListed 1993Smithtown
DirectionsAdd an old photo

Many listed buildings are private homes. Please enjoy them from the street.

About

About the district

Harbor House, at Spring Hollow Rd., was added to the National Register of Historic Places on Aug 9, 1993. The Register lists it for its recreation, architecture and social history, at the local level. It describes its style as Late 19th and Early 20th Century Revivals, as it does for 55 other New York listings. The district takes in 2 historic buildings. It was listed as part of Stony Brook Harbor Estates MPS. The listing covers 21.9 acres.

What it isHistoric house in New York, United States. From Wikidata (CC0). Read about it on Wikipedia ↗

PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 16 MB · National Archives↗
Visit

Make it a walk: 3 landmarks in about 15 minutes

Spring Hollow Rd., Smithtown · about 0.5 miles on foot, as the crow flies

DirectionsWalk the tour in Google Maps
  1. 1Harbor HouseStart here
  2. 2WoodcrestShingle Style · 0.3 mi on
  3. 3BeachbendColonial · 0.2 mi on
Around it

6 more Register listings within a mile

★ National Historic Landmark · D district · B building · S site. Each opens its own page.

DShore CottageLate 19th and Early 20th Century Revivals0.3 miBBy-the-HarborShingle Style0.4 miDBox Hill EstateNeo-Colonial0.5 miDKate Annette Wetherill EstateColonial Revival0.6 miDWilliam J. Ryan EstateGeorgian Revival0.7 miDJames W. and Anne Smith Phyfe EstateLate 19th and Early 20th Century Revivals0.9 mi

Memories of Harbor House

The record says what it is. Neighbors know what it means.

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Have an old photo of it?Add it · +10

Questions about Harbor House

Is Harbor House on the National Register of Historic Places?

Yes. It was added on Aug 9, 1993 (Register number 93000701).

Is Harbor House a National Historic Landmark?

No. It is on the National Register; New York has 273 National Historic Landmarks. The nearest is William Sydney Mount House, 2.3 miles away.

Can you visit Harbor House?

Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.

Where can I read the history of Harbor House?

In its National Register nomination, the form that put it on the Register: a 16 MB PDF at the National Archives, linked on this page.

Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 75314985 · Wikidata. Map tiles © OpenStreetMap contributors.