The Cook County Assessor’s Office oversees the valuation of over 1.3 million residential parcels across the county, which is divided into three assessment districts: City, North, and South, encompassing 38 individual Townships. Each Township undergoes reassessment every three years, with new assessed values assigned to individual parcels. The Assessor employs a computer-assisted mass appraisal method, utilizing a computerized sales model that considers various factors, including sales of comparable properties, land characteristics, location, building square footage, and construction type. This method analyzes sales within neighborhoods to estimate market values based on individual building characteristics, tailored to specific neighborhood and land-use codes. Navigating the property tax appeal process can be complex and requires specialized knowledge. If you believe your property is over-assessed, it’s crucial to be represented by a qualified attorney who will diligently work to file a successful appeal. At KhatibLaw, we specialize exclusively in property tax appeals in Cook County. There are typically two pathways to succeed in a property tax assessment appeal: