Thornton House was constructed around 1900 at 636 Seward Street. This Craftsman Bungalow residence contributes to the Chicken Ridge Historic District.

The front elevation features a full width hip roofed glass porch. A small single lite window is symmetrically located at the top of the gable seen above the porch roof. The rectangular shaped building (33' x 24') is 1-1/2 stories with no basement. Exterior walls are clad with horizontal wood flush tongue and groove siding with coursed wood shingle siding in the gable ends. The front gabled roof system is covered with wood shingles. The structural system consists of wood balloon frame and concrete and wood post foundation.