The first courthouse was built in Carrollton in 1834 and was a simple two-story brick building with a cupola topping off the structure.

The main entrance is reached by stairs and a small portico, with Corinthian columns supporting the balcony above.

A mansard roof rises to a central tower supporting a dome and four cardinal point clock faces.

Writing shortly after the courthouse was completed, Henry Howe noted : "...costing with jail in the rear about $150,000.

The interior hosts smooth mosaic tiled floors, recently lowered ceilings and ornate steel staircases.

The annex was built in 1976 and is a simple red brick structure with no adornment and large rectangular windows.