The outside of the Pawn Shop looks quite intact. The building itself is large with a giant glass window so that customers can see what they have for sale. It is also in the color purple and has a big sign that reads "Pawn Shop."
The Pawn Shop itself has not been fully seen inside, but through the window, there are several items visible, including a grandfather clock, a taco stand, and even the Krusty Krab. The only known employee is the Appraisal worker and Pawn Shop owner.
The Pawn Shop is seen for the first time when Plankton walks up to it and spots the Krusty Krab inside of it. He then runs home to get his money. The Pawn Shop is seen for the last time when Mr. Krabs buys back the Krusty Krab and drives it back to its place. Plankton comes up seconds later and notices the Krusty Krab is gone. The Appraisal Worker tells him he already sold it but offers a taco stand instead. Plankton is, of course, shocked and upset by this.
The Pawn Shop is the second building in the episode "Hello Bikini Bottom!" that is seen and visited twice. The other is Electronics Outhouse.
The shop, and the surrounding buildings are bigger than the Krusty Krab itself because the whole Krusty Krab stood in there on display, and was dwarfed by the other buildings too.