Zachary Costello

Get to know Zachary Costello

A seasoned real estate broker with 10+ years of experience helping buyers, sellers, and investors succeed across the city. An eye for pricing, creative negotiation strategies, and making every deal as straightforward as possible.

Specialties

Buyer's AgentListing AgentNew Construction

11 Years of experience

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Zachary Costello's sales and listings (50)

This map and property list shows the most recent 100 sales and 100 listings

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$485,000
2 bd
3 ba
1,481 sqft
4268 W Harrington Ln, Chicago, IL 60646
Sold 1 month ago
Buyer
$575,000
3 bd
2 ba
2,000 sqft
9S771 Brookbank Rd, Willowbrook, IL 60527
Sold 4 months ago
Buyer
$215,000
2 bd
1 ba
-- sqft
1659 W Pratt Blvd APT 2B, Chicago, IL 60626
Sold 4 months ago
Buyer
$590,000
3 bd
2 ba
1,600 sqft
2248 W Foster Ave APT 4, Chicago, IL 60625
Sold 5 months ago
Seller
$310,000
1 bd
1 ba
750 sqft
1255 N Sandburg Ter Unit 2606E, Chicago, IL 60610
Sold 6 months ago
Buyer

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For sale (0)

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5.0
7/14/2026
• Nicole Walshon
Bought and sold a Single Family home in 2026 in Willowbrook, IL.
If you’re looking for a realtor, I can’t recommend Zach enough. We’ve bought and sold several homes over the years, this was by far the best experience we’ve ever had. Fr...
If you’re looking for a realtor, I can’t recommend Zach enough. We’ve bought and sold several homes over the years, this was by fa...
5.0
4/25/2026
• chhedasg
Bought a home in 2026.
We hadn’t bought a property in 20 years and Zach was exactly who we needed. Not only did he have an incredible degree of knowledge of real estate in Chicago- he had excel...
We hadn’t bought a property in 20 years and Zach was exactly who we needed. Not only did he have an incredible degree of knowledge...
5.0
4/23/2026
• Canlon Bruer
Bought a Condo home in 2026 in Lake view, Chicago, IL.
Zach is stellar! He is a true professional who knows the market inside and out. As first time home buyers, the process couldn’t have been easier with Zach by our side. Hi...
Zach is stellar! He is a true professional who knows the market inside and out. As first time home buyers, the process couldn’t ha...
5.0
8/29/2025
• Yvette Murphy
Bought a home in 2025.
Zach became an invested partner in my home search from start to finish. He listened to my needs, concerns, and anxiety about navigating this overwhelming process and tran...
Zach became an invested partner in my home search from start to finish. He listened to my needs, concerns, and anxiety about navig...
5.0
8/23/2025
• Brandi Clinch
Bought a Condo home in 2025 in Lake view, Chicago, IL.
As a solo, first time condo buyer, Zach was great to work with. He'd point things out on showings that I didn't even know to look for and be a sounding board when I wante...
As a solo, first time condo buyer, Zach was great to work with. He'd point things out on showings that I didn't even know to look ...
5.0
4/7/2025
• Katrina DeKett
Bought a Townhouse home in 2025 in Bucktown, Chicago, IL.
Zach is every homebuyers dream. His communication is stellar, he is extremely punctual, and his knowledge on the home buying process is beyond extensive. This guy knows h...
Zach is every homebuyers dream. His communication is stellar, he is extremely punctual, and his knowledge on the home buying proce...
5.0
3/5/2025
• pds7273
Bought a Condo home in 2025 in The loop, Chicago, IL.
Zachery was absolutely a dream to work with he went out of his was and made the entire process so smooth and easy. He explained everything thoroughly and was very respons...
Zachery was absolutely a dream to work with he went out of his was and made the entire process so smooth and easy. He explained ev...
5.0
11/25/2024
• enrique arriaza g
Bought a Condo home in 2024 in Tinley park, IL.
Could not have worked with a better realtor. Knows the business well and helps you in every way possible to get what you need! Honest and does all the research you need ...
Could not have worked with a better realtor. Knows the business well and helps you in every way possible to get what you need! Ho...
5.0
4/21/2024
• giovanaolvera
Bought a Single Family home in 2024 in Wheaton, IL.
His expertise in the market help me to do the best choice to select my house. He is very professional, in time in our, he reviews in the houses to visit all the details...
His expertise in the market help me to do the best choice to select my house. He is very professional, in time in our, he reviews...
5.0
3/19/2024
• edfaller
Bought a Single Family home in 2024 in Brookfield, IL.
Zach was a tremendous help. He was extremely patient and helpful with the entire process. His knowledge of the process and the area was the biggest reason we found the r...
Zach was a tremendous help. He was extremely patient and helpful with the entire process. His knowledge of the process and the ar...

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Get to know Zachary Costello

Zachary Costello's sales and listings (50)

Sold (50)

For sale (0)

Zachary Costello's reviews (22)

Bought and sold a Single Family home in 2026 in Willowbrook, IL.

Bought a home in 2026.

Bought a Condo home in 2026 in Lake view, Chicago, IL.

Bought a home in 2025.

Bought a Condo home in 2025 in Lake view, Chicago, IL.

Bought a Townhouse home in 2025 in Bucktown, Chicago, IL.

Bought a Condo home in 2025 in The loop, Chicago, IL.

Bought a Condo home in 2024 in Tinley park, IL.

Bought a Single Family home in 2024 in Wheaton, IL.

Bought a Single Family home in 2024 in Brookfield, IL.

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