The four-story building was constructed of brick, with a base of granite brought to Wenatchee from Index, Washington. The building is trimmed with terra cotta designs, and the corridors of the courthouse are laid with Alaskan marble and oak wood framing windows and doors. Construction materials found in this Palladian Beaux Arts style building are unique and costly. The attention to detail in both exterior and interior moldings is a reflection of the pride of the many craftsmen known for their skills and is unmatched in today's construction techniques. The terra cotta detailing that surrounds the doors and is used extensively at the top of the columns and roofline includes embellishments of fruit laden garlands, rosettes and leaves, scrolls, floral work and fountains, along with shields featuring the scales of justice.
Alaskan marble graces the halls and stairs on each floor.
Cast iron grillwork accents the middle two floor windows. The pale yellow stained glass in the two courtrooms arched windows offers soft filtered lighting to these elegant rooms. They have also lowered ceilings inside the structure to house HVAC units and covered much of the ornamental plasterwork on the ceilings.