Built in 1818, it was the home of William K. Eastman, a prominent local businessman, politician, and civic leader until his death in 1879.

[1] The William K. Eastman House stands in near the center of Conway Village, on the north side of Main Street (New Hampshire Route 16), a short way west of its crossing of the outlet of Pequawket Pond.

It has a symmetrical five-bay front facade, with a center entrance framed by sidelight windows, pilasters, and an entablature.

It is sheltered by a Victorian hip-roof porch three bays wide, with turned posts and decorative jigsawn brackets.

His mill and tannery operations were located just to the east, using Pequawket Pond as a power source; none of these industrial properties have survived.