The Thatcher House is a historic patterned brick house located at 255 Ridge Road in Kingwood Township, about two miles from Frenchtown, in Hunterdon County, New Jersey, United States. It is named after Jeremiah Thatcher (d. 1790), a local farmer. Built in 1765, the house was added to the National Register of Historic Places on December 4, 2020, for its significance in architecture. It features patterned brickwork with complex diamonds.[4] The house is part of the Traditional Patterned Brickwork Buildings in New Jersey Multiple Property Submission (MPS).[5] It features a mix of Flemish bond and Flemish checker, with four different diamond designs.[4]