The Bikini Bottom Volleyball Courts and Appraisal Center appears to be the local volleyball court of Bikini Bottom, and also the center for appraisal.
There are sandy volleyball courts on the outside, and a pinkish building where the Appraisal Worker is.
The inside of the this place is pretty small and has many items in it. The only known employee is the Appraisal Worker.
It was most likely linked to an appraisal center for comedic purposes and to help with the plot of Porous Pockets. It was there that SpongeBob traded his pearl for a small fortune that ruined his relationship with Patrick.