400 Main Street, Mazon, IL. Well-maintained 9-unit efficiency apartment building for sale, featuring updated siding and awnings (2021) and a newer roof (2015). The property also includes an impressive 45' x 24' detached Morton building offering excellent additional income potential. The Morton building is equipped with a service entry door, 14' x 12' overhead garage door, 100-amp electrical service, 4" floor drain, and 6" insulated walls and ceiling-ideal for storage rental or other flexible uses. Each efficiency unit includes its own small refrigerator and microwave, with access to a shared kitchen and laundry area for all tenants. This property offers strong cash flow and a solid long-term investment opportunity. Don't miss out-schedule your appointment today!
As the MLS and public records start to fill up, we'll list the details here.
Public record
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Style
Multi-Family (5+ Unit)
County
Grundy County
APN
0821232004
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Last updated by owner on Nov 24, 2025.
Historical weather
Mazon, IL • 60444
Average low and high temperatures (°F)
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36
36
22
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Sun exposure
99/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 15% for direct sun exposure in the zip code. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.4 hrs
6.1 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 400 Main St
There isn’t enough information to generate an accurate estimate at this time. Learn More