The first official presidential residence stood at Cherry and Pearl streets in New York City. Merchant Walter Franklin built the substantial house about 1770, and it later came to Samuel Osgood through Osgood's marriage to Franklin's widow, Maria Bowne Franklin. When the new federal government began under the Constitution, New York served temporarily as the national capital. Congress needed a suitable furnished residence where President-elect George Washington could live, work, receive visitors, and represent the dignity of the new office.

Washington arrived in New York on April 23, 1789, and moved into the Osgood House shortly before taking the oath of office at Federal Hall on April 30. Martha Washington arrived in May, and the household included relatives, secretaries, hired workers, servants, and enslaved people brought from Mount Vernon. The residence therefore combined private family space with the business of the executive branch at a time when no established presidential staff, office complex, or ceremonial routine existed.

Rooms in the house functioned as Washington's office and as places for official meetings and receptions. Secretaries managed correspondence, appointments, and the flow of petitioners. The president consulted department heads and members of Congress while working out how the Constitution's brief description of executive power would operate in practice. Decisions involving appointments, foreign affairs, revenue enforcement, and administrative organization passed through a domestic building, making the mansion an early seat of the federal executive.

Life there also exposed contradictions within the new republic. Enslaved members of the Washington household performed essential labor in a state moving toward gradual abolition. Because Pennsylvania later imposed residency rules that threatened enslaved status, Washington's household would rotate enslaved workers during the subsequent Philadelphia period. The New York residence thus belongs to the history of the presidency and to the history of slavery, labor, and unequal freedom in the nation's founding generation.

The Osgood House soon proved too small for entertaining and official demands. In February 1790 Washington moved to the larger Alexander Macomb House on Broadway. Later that year the federal government relocated to Philadelphia, and in 1800 it moved permanently to Washington, D.C. The Cherry Street house returned to private use and was demolished in 1856 as the neighborhood and approaches to the Brooklyn Bridge changed.

The marker preserves a vanished location rather than an intact presidential mansion. Dates on commemorations vary by a few days because they may distinguish Washington's arrival, family occupancy, or formal residence, but the essential period runs from late April 1789 to February 1790. The site matters because presidential customs were improvised here before the White House existed. In an ordinary urban mansion, Washington's household and assistants began turning constitutional language into the daily practices, burdens, and symbolism of the American presidency.