The John Osborne House is a historic house at 909 King's Highway West in Fairfield, Connecticut. It was built in 1734, according to the tax records.[2] It was listed on the National Register of Historic Places in 1987.[1] The house is architecturally significant as an early colonial era house whose intact framing is somewhat unusual in its non-conformance to supposed patterns. Exact age of the house is unclear. There are suggestions the house may have been built as early as 1673.[3]
It is located adjacent to what was the Pequot Swamp, site of the last battle of the Pequot War of 1637. The house may be located on an 80-acre grant of land to Richard Osborne, father of John Osborne, for his services in that war.[3]: 8