[3] The 44 buildings, five objects and two structures that make up the contributing properties of the historic district represent a wide range of architectural styles and uses.

This two-story Italianate structure is attached to two other historically significant buildings at the corner of Washington and Third Streets in Oregon.

Its exterior is decorated with ivory brick detailing and it sports a three globe milk glass sign over the door on its second story.

[2] The Oregon City Hall was constructed in 1920, though its front facade, specifically the windows, have seen some renovations and replacement.

[2] Though now converted for commercial use the building still features its marquee with "OREGON" written on it in large neon letters.

This traditional I-house structure was built around the beginning of the American Civil War and began its history as a private residence.

It features three sculptures by Lorado Taft and an exedra designed by the architects Allen and Iriving Pond.

[2] The three-story structure known as the Union Block, or Hall, Opera House is a Romanesque Revival influenced building constructed around 1880.

It has a large second story oriel which causes it to stand out from the surrounding buildings which are designed in a more sedate Classical Revival and Italianate styles.