Sag Harbor Custom House

Written By Dino DiPietro

Here’s a detailed overview of the history of the Sag Harbor Customs House:

🏛 Early Origins and Construction

  • Built around 1765–1770 as a modest “half‑house” typical of eastern Long Island settlements. [en.wikipedia.org], [finditlongisland.com]

  • Operated originally as a private residence until the Admiralty functions were introduced.

Designation as a Federal Port of Entry

  • In 1789, Sag Harbor was officially designated a U.S. Port of Entry to support growing maritime trade with whalers, coasters, and ships traveling to the West Indies. [en.wikipedia.org], [preservati...island.org]

  • President George Washington appointed Henry Packer Dering (1763–1822) as the first Customs Collector—and later postmaster—for Sag Harbor. [en.wikipedia.org], [en-academic.com]

Transition into a Customs House under Dering

  • Early 1790s: Dering acquired the house, converting part of the structure into his customs office and counting house by adding a lean-to. [preservati...island.org], [finditlongisland.com]

  • Circa 1794–1795: Further expansions included a second lean-to for postal duties and a formal central-door addition to accommodate his expanding family. [finditlongisland.com]

Mid-Late 19th Century Alterations

  • Over the 1800s, the building continued evolving for both residential and governmental functions. [finditlongisland.com]

Preservation and Relocation

  • By 1948, the original location at Union & Church Streets faced demolition. The Old Sagg‑Harbour Committee relocated the structure to 192 Main Street (Garden Street corner) to preserve it. [preservati...island.org], [finditlongisland.com]

  • In 1966, it was acquired by Preservation Long Island (formerly the Society for the Preservation of Long Island Antiquities), initiating efforts to restore and interpret it as a museum. [preservati...island.org], [en.wikipedia.org]

Museum Status & National Recognition

  • Restored to reflect its appearance during Dering’s tenure, the Customs House now serves as an educational museum, showcasing daily life and federal operations in early post-Revolutionary America. [en.wikipedia.org], [preservati...island.org]

  • It contributes to the Sag Harbor Village Historic District, which was nationally recognized in 1994. [en.wikipedia.org]

Dino DiPietro