2026 Verified Benchmark & Execution Guide
How to Build a 3-Comparable-Sales (Comps) Adjustment Grid for Florida VAB, Illinois & New York Tax Grievances
The exact $/sq-ft adjustment formula used by licensed appraisers to prove unequal assessment.
Need this exact packet customized for your state/case in 10 seconds?
Launch PropTaxCut Generator ($14.90) →
1. Quantitative Benchmarks & Statutory / Clinical Standards
| Parameter / Rule | Standard / Threshold | Actionable Savings / Protection |
|---|---|---|
| Rule 1: Proximity & Style | Same Subdivision / School Zone & Story Count | Select 3–5 properties within 0.5 miles and +/- 15% square footage |
| Rule 2: Size Adjustment | Adjust Comp Value at 50% of Median $/Sq Ft | Accounts for diminishing marginal cost of extra living area |
| Rule 3: Equity Ratio Grid | Rank Comp Assessed $/Sq Ft From Lowest to Highest | Demand assessment at the median $/sq ft of the 5 comparables |
2. Step-by-Step Execution Protocol
Whether filing a Florida Value Adjustment Board (VAB) petition, an Illinois Board of Review uniformity appeal, or a New York RP-524 grievance, hearing officers reject Zillow Zestimates. They require a clean 3-to-5 Comparable Adjustment Grid normalizing living area, lot size, garage bays, and basement finish.
Instant Digital Delivery · Zero Wait
Generate Your Complete PropTaxCut Packet Now ($14.90 Starter / $29.00 VIP)