Edgemoor Farm Dairy Barn, Heritage dairy barn in Santee, United States.

The Edgemoor Farm Dairy Barn is a 1913 Dutch gambrel roof barn, the only surviving building from Walter Hamlin Dupee's dairy farm. Its two-slope gambrel roof creates a tall upper storey for hay and feed, while the lower level housed the milking operation. The former milking barns were later converted to living quarters.

The building was constructed in 1913 and developed into a modern operation recognized for breeding advances. After decades as a private facility, it passed to public ownership in 1923.

Since 1986 the barn has housed the Santee Historical Society's museum and offices, run with charitable donations. Its address changed from 9064 Edgemoor Drive to 9200 N. Magnolia Ave. Visitors see the 1913 Dutch gambrel roof structure, the only building left from Walter Hamlin Dupee's dairy era.

The building is located on the eastern edge of Santee and functions as a museum managed by the Santee Historical Society. Comfortable shoes and careful footing are recommended when visiting this older structure.

The property gained recognition in the early 1920s for its scientific breeding methods from a national breeders organization. This made it a model for modern farming techniques in the region at that time.