Harborside Plaza 10 is an unnamed skyscraper located on Rand Avenue, between the Exchange Place Center and International Online Unlimited in Alderney City, Alderney. Since it is not officially given any name in-game, it is called by the name of its real-life counterpart. According to the TV Show I'm Rich, the building is owned by Tony McTony. The building is based on the Harborside Plaza 10 located in Jersey City, New Jersey.
- If you use a cheat code and spawn a sports car or motorcycle, you can drive off the slanted roof and jump over the West River and land on Algonquin. This is not an official stunt jump.
- In the beta version of the game, the building was completely covered in glass like its real life counterpart. This can still be seen on I'm Rich.