The West End Library, now the Unionville Museum, is a historic library and museum building at 15 School Street in the Unionville village of Farmington, Connecticut. It is a single-story building, with load-bearing brick walls finished in stucco, and a red tile roof. Its main facade is seven bays wide, with a projecting gable-roofed entry portico in the center bay. The other bays have tall round-arch windows, with small rectangular transom-like windows set above, just below the roofline, with diamond grillwork.