TaxRival has analyzed 396 commercial properties in Lemont Township and identified 29 that appear over-assessed, representing $705K in potential annual tax savings.
Check Your Property →Lemont Township is part of the South/Southwest Suburban triad and was last reassessed in 2025, with the next reassessment in 2028. Located in the southwest corner of Cook County, Lemont Township includes the Village of Lemont and surrounding areas along the historic Illinois & Michigan Canal corridor. Despite having only 661 commercial properties, the township shows a notable concentration of over-assessments.
Our analysis of 396 commercial parcels in Lemont Township found that 7.3% are flagged as likely over-assessed, with the average over-assessment at 42.8%. The 29 flagged properties represent $705K in total potential tax savings. That works out to over $24,000 per flagged property on average, making Lemont one of the highest-impact townships on a per-property basis in the south suburban triad.
Lemont Township's commercial inventory includes quarry-adjacent industrial properties, retail along State Street, and newer commercial development near I-355. The mix of legacy industrial sites and modern retail creates a market where blanket valuation assumptions can produce significant over-assessments, particularly for properties with unique physical characteristics or environmental considerations.
TaxRival uses a comparable-sales methodology to evaluate whether your property's assessed value is supported by actual market data. We analyze recent arm's-length sales of similar commercial properties in and around Lemont Township, accounting for property type, size, age, and location.
When the Assessor's implied market value significantly exceeds what comparable sales indicate, we flag the property as a strong appeal candidate. This same approach is used by the Cook County Board of Review when adjudicating appeals. Learn more about how comparable sales drive property tax appeals.
The Cook County Assessor opens filing windows on a township-by-township basis. For Lemont Township, the Assessor-level appeal window follows the South/Southwest Suburban triad schedule. Property owners typically have about 30 days from the date reassessment notices are mailed to file an appeal. Missing this window means waiting until the Board of Review period, or potentially an entire reassessment cycle.
We track every township deadline and will notify you when the Lemont Township window opens. See the full 2026 Cook County appeal deadline schedule.
Enter your 14-digit Cook County PIN to instantly see whether your Lemont Township property is over-assessed. Our analysis is free, and if we file an appeal, you only pay 25% of first-year savings. No reduction, no fee.