Palmer House, Neoclassical residence in Dayton, US.

Palmer House is a Neoclassical residence in Dayton that displays symmetrical proportions with classical columns framing the entry and evenly spaced windows across its facade. The structure retains its original architectural details, reflecting the building standards and craftsmanship typical of the Federal period.

Joel Palmer, who co-founded Dayton, built the house in 1852 or 1857 after first running a hotel in the centre of the new town. It has survived several floods and at least one major fire. It was listed on the National Register of Historic Places on 16 March 1987, the first of 48 Dayton properties to be listed, and is the town's oldest standing structure.

The house has operated since 1996 as an upscale restaurant serving creative local cuisine, so visitors today encounter it through its dining room rather than as a museum. Its name recalls Joel Palmer, the Oregon pioneer who co-founded Dayton and kept a hotel in the new town before building this house.

The residence sits in a residential neighborhood of Dayton and is visible from the street, making it easy to view from outside. Walking around the building allows visitors to observe the architectural details and how the house relates to surrounding properties.

The house has survived several floods and at least one major fire. It sits near the mouth of the Yamhill River where it meets the Willamette, beside Palmer Creek, formerly Smith Creek, whose flow was early used to power machinery. Since 1996 it has operated as an upscale restaurant serving local cuisine.