Commercial Space CAD Floor Plan

I need a detailed CAD floor plan for a small 400 sq ft existing commercial space with updated fixtures count for submission to the city. Currently we are using the detached space for temperature controlled storage, we now need to convert it to useable space to be included with the larger building... (Budget: $1500 - $3000 USD, Jobs: Architectural Engineering, AutoCAD, Building Architecture, Building Design, Building Information Modeling, CAD/CAM, Construction Management, Floor Plan, Solidworks)