“The key to overcoming obstacles and achieving success is a strong work ethic, adaptability, and a genuine love for what you do,” says REALTORⓇ Peggie Costello, who is no stranger to overcoming obstacles, both professionally and personally. “My journey to where I am today has been characterized by an unwavering entrepreneurial spirit and drive.”

Peggie, who grew up in DuPage County, heeded that spirit from an early age and was unphased by hard work. At just twelve years old, she started delivering newspapers, later taking on odd jobs around the neighborhood. By fifteen, she’d landed her first official job scooping ice cream at the local Bresler’s 33 Flavors ice cream shop, eager to make her own money and gain independence. 

Her entrepreneurial spirit only grew stronger with time, leading her to Illinois State University, where she earned a degree in business administration. Little did she know that years later, this foundation would help shape her unexpected path into real estate.

Her foray into the industry was far from traditional. In 2012, Peggie and her then-husband owned investment properties in Florida that were struggling. 

“My ex-husband suggested I get my real estate license to help manage them,” she recalls. “At the time, I thought the license would just be something to keep in my back pocket.” But that decision led to something far greater than managing properties.

Once licensed, she needed to place her credentials with a brokerage. A friend connected her with a local office, and although she had no intention of working actively in real estate, she quickly found herself drawn to the industry. 

“I loved the camaraderie at our office meetings,” Peggie recalls. “Before I knew it, I was taking a rental course and helping agents who didn’t want to handle rentals.” 

Soon, her renters turned into buyers, and her business took off, eventually earning her the nickname of “rental queen.” But even for entrepreneurial Peggie, the early days weren’t without challenges. 

“Building credibility was tough,” she admits. “I wasn’t the typical new agent with a natural pipeline of clients. I had to create my own opportunities.” 

So, in addition to nurturing her client relationships, Peggie focused on sharpening her skills, earning multiple certifications and five designations that include Certified Negotiation Consultant and Pricing Strategy Analyst. Over time, she gained a reputation as a knowledgeable, decorated, and dedicated REALTORⓇ. 

“My ability to navigate multiple offers and negotiations has been crucial in today’s market, and it’s my favorite part of the business,” she shares.

Now a consistent top producer with @properties, Peggie has built her career on trust, expertise, and outstanding client service. Her track record speaks for itself, with 95 five-star Zillow reviews and numerous satisfied clients. But beyond the numbers, what sets her apart is her ability to connect, an aptitude which is welcomed in the culture of her current firm.

“Unlike the corporate structure of larger firms, I can easily connect with the owners [of @properites] and collaborate with my colleagues,” Peggie says. “This supportive culture not only fosters a sense of belonging, but it also enables me to provide the best possible service to my clients.”

“[Early on] A broker once told me, ‘Pick up the phone and call the agent on the other side.’ That advice changed everything,” she says. “Building relationships in this business makes all the difference. Many REALTORSⓇ have chosen to work with me solely based on our rapport.”

Costello’s impact extends beyond real estate too. She is deeply involved in her local church and values giving back to the community. But perhaps her greatest joy comes from spending time with her four adult children: Rosalia, Kiley, Joey, and Marino. 

“Every Sunday, I cook and invite them over if they’re available,” she says. “Family means everything to me.”

An avid cook and self-proclaimed foodie, Peggie loves preparing classic Italian dishes like lasagna, pasta with Bolognese sauce, and escarole and bean soup. She also seeks the best food experiences she can, saying that tasting others’ culinary talents is a wonderful way to unwind and indulge. Recently, she’s discovered another passion: “I took a golfing trip last summer and fell in love with it,” says Peggie. “I play whenever I can.” On the weekends, you’ll likely find Peggie taking in the tunes at Jonny Cab's in Burr Ridge or Positano Ristorante in Oak Brook, where a friend of hers sings regularly.  

Looking ahead, Costello decidedly sees real estate as the perfect fit for her life and lifestyle. She says, “This business gives me freedom—financial freedom, time with family, and the ability to live life on my terms.”

“And I can work from anywhere: a beach, a hotel room, or even on vacation,” she adds. “The truth is, I love what I do so much that I never want to step away from it.”