Okay, let’s calculate this. So Walter has 26 years of experience in architecture, which is a significant amount. His expertise in various software tools like Autocad, Revit, and Sketchup is also in demand. Location is the Greater Chicago Area, which is a hub for architecture and design. According to national averages, mid-level architects with similar experience can charge around $100-$150 per hour. However, considering his extensive experience and software skills, I’d estimate his rate to be on the higher side. Maybe around $125 per hour, considering the industry standards for experienced architects in the Chicago area.