This research examines the acoustic comforts of different occupational building types and investigates the combination of building elements, especially focusing on building layout and materials that are considered significant sources of unwanted sound. A major part of the thesis relies on a series of sound pressure (decibel) measurements in three distinctive occupational types: residential, educational, and theater buildings on the Iowa State University campus, and evaluates them with the current standard of allowable sound levels. In addition, this thesis analyzes the existing spatial and material strategies of the three types. The selected materials and their acoustic qualities will be investigated and compared with USG Building Acoustic Assemblies. The results reveal poor acoustic qualities and unconcerned acoustic designs of the investigated buildings. Most of the surveyed designs do not meet either the American National Standards (ANSI) and American Society for Testing and Materials (ASTM).