Peggie Costello, Broker, Realtor


The constant communication, guidance and confidentiality Peggie Costello provides clients are key to her stellar reputation and a brand that has been 11 years in the making.

“I understand that buying a home is an enormous emotional and financial undertaking,” says Costello, a broker/Realtor with @properties. “I genuinely love people and enjoy helping them achieve their dreams.”

Costello assists buyers, sellers and investors, from first-time to luxury to downsizers, in Downers Grove where she resides, as well as Naperville where she raised her family for 25 years. In fact, with Villa Park as her hometown, she has a pulse on the entire Chicagoland area, especially the western suburbs.

Extremely motivated and competitive, Costello craves the challenge of being the best she can be with the goal of giving every client a 5-star experience. Ultimately, that mission has led to a lot of repeat and referral business. In 2020, she earned the Mainstreet Organization’s Production and Top 3% of Sales awards from a pool of more than 18,000 members. Since 2014, she has consistently been named a Top Producer at her office.

Fun and easygoing but driven toward achieving her goals at all times, she has been involved in upwards of 200 transactions and as a result, is expert at problem-solving. Buyers and sellers alike are confident in Costello’s ability to position a home for sale to attract their target client or to negotiate from a position of strength on their behalf.

With a deep-set passion for real estate, she is committed to adding value to the client experience and holds the designations of certified staging consultant, sellers representative specialist, pricing strategy analyst and certified negotiations consultant.

Leading with a client-first attitude, Costello knows that knowledge is power and appropriately keeps clients informed throughout the process. She also has a helpful list of service partners ready to assist, from attorneys to inspectors and beyond.

In her free time, Costello, a mom of four adult children, enjoys learning Italian, traveling, cooking and reading.

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