Har Mar Mall comprises over 430,000 square feet (40,000 m2) of retail space and the mall's anchor stores are Famous Footwear, Michaels,Barnes & Noble, K&G Fashion Superstore, Burlington, Cub Foods, H&R Block, Marshalls, Painting with a Twist, Sport Clips, Waxing the City, Elements Massage, and a Chase Bank branch.

[4] According to Thorsen, the mall consists of "a long corridor, which zigzags at a series of angles... that make Har Mar truly unique";[5] it features "massively wide" hallways and "arched ceilings with large windows" to allow natural light to enter the corridors.

[10] Shortly after the tornado, a large renovation occurred to update the mall's appearance and fix any damage left by it.

[5] In 1988, another expansion took place, allowing Har Mar to acquire several larger retailers in the newly constructed space; the opening of Highland Superstore and TJ Maxx appeared later this year, along with the addition of a new food court with seating for over 400 people.

[9][15] In 2014, Burlington Coat Factory, a discount apparel retailer, announced that they planned to lease a 52,300 square feet (4,900 m2) space previously occupied by Northwestern Books; the opening of this location allowed all of Har Mar's anchor tenants to be completely leased.

[17] Several new tenants and businesses have begun leasing space in the center, such as Staples Inc., D'Amico & Sons, plus several other fine dining establishments.