
Get to know Peggie (Margaret) Costello
Broker Associate
630-391-1991 Peggie Costello was featured in Chicago Agent Magazine's "Who's Who in Chicagoland Real Estate" Edition in 2021, 2022 and 2023. In 2024 she was recognized as a top producer by the Mainstreet Board Of Realtors, performing in the top 2% of the 18,000+ agents for sales volume and in 2020 top 3%. She is a self-motivated Realtor with a strong track record of success for delivering high quality customer experiences for over a decade. Cons...
Peggie (Margaret) Costello's listings & sales (260)
For Sale
Sold (260)
Address | Sold date | Closing price | Represented | Flag Sale |
---|---|---|---|---|
7/21/2025 | $545,000 | Buyer and Seller | ||
7/10/2025 | $850,000 | Seller | ||
7/2/2025 | $619,990 | Buyer | ||
6/23/2025 | $595,000 | Buyer | ||
6/6/2025 | $865,000 | Seller |
Peggie (Margaret) Costello's reviews (102)
Write a review- Highly likely to recommend||5.05.0
7/7/2025 - lheicher
Bought a Single Family home in 2025 in Plainfield, IL.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWe were thrilled to have Peggie working for us in Illinois while we were house-hunting from Michigan. She knew exactly what was important to us and attended a walkthrough with us virtually and she was very honest with her opinions of properties - she... - Highly likely to recommend||5.05.0
6/25/2025 - zuser20140802111330774
Bought a Single Family home in 2025 in Downers grove, IL.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWe're fortunate to have been guided by Peggie in securing our forever home! We have very specific asks and taste, and Peggie was always patient with us in fine-tuning search criteria. She always responded to our questions and requests instantly, and ... - Highly likely to recommend||5.05.0
6/6/2025 - samirhalool
Sold a Townhouse home in 2025 in Lombard, IL.Local knowledgeProcess expertiseResponsivenessNegotiation skillsI can’t say enough great things about working with Peggie! She was an absolute rock throughout the entire process of selling my home. From day one, Peggie demonstrated professionalism, deep market knowledge, and most importantly—patience. The sale wa... - Highly likely to recommend||5.05.0
3/7/2025 - zuser20181115085224831
Bought and sold a home in 2025.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWe can’t say enough great things about Peggie! She first entered our lives six years ago as the seller’s agent for our first home, and she was so wonderful to work with that when it came time to sell that home and find our dream house, we knew exactl...Response from Peggie (Margaret) Costello on 6/7/2025
Thank you so much for your review. It was truly my pleasure working with you and your beautiful family.
- Highly likely to recommend||5.05.0
3/3/2025 - J.M. Pasquesi
Sold a Condo home in 2025 in Old town, Chicago, IL.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWhether you’re buying or selling, Peggie makes the process a breeze. She’s represented us on both sides a few times and always a pleasure to work with. Her market knowledge and attention to your property create a stress-free confidence in the endeavo...