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Chicago Property Sales Data

670,000+ Cook County property sales across 38 townships

670K+
Transactions
38
Townships
16
Page Reports
Monthly
Data Updates
Official Data
Cook County AssessorIllinois PTAX

Professional-Grade Property Research

Everything you need to evaluate Cook County property, completely free to search

🔍

Radius Search

Search comparable sales within any radius of a address or zip code. Covers Cook County.

📊

Market Statistics

Median prices, price per sq ft, property type breakdown, distribution analysis, and year-over-year trends.

📄

17-Page PDF Reports

Full valuation with investment intelligence, rental yields, supply-demand signals, price forecasts, and scorecard.

📈

Price Forecasts

6 and 12-month price projections based on trend momentum with size-adjusted valuation estimates.

🏗

Deep Analytics

Construction era analysis, type premium comparisons, price per sq ft breakdown, and percentile ranking.

💰

Transfer Tax Calculator

Local transfer tax calculator with full breakdown included in every PDF report.

Simple, Transparent Pricing

Search for free. Pay only for PDF reports you need.

Free

$0
forever
  • Unlimited searches
  • 50 comparable sales per search
  • Market trends & statistics
  • CSV download
  • 1 free PDF report (email required)
Get Started

Pay-as-you-go

$5
per PDF report
  • Everything in Free
  • Full 17-page valuation report
  • Investment intelligence & scorecard
  • Price forecast & deep analytics
  • No subscription required
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Business

$150
per month
  • Unlimited PDF reports
  • 500 comparable sales per search
  • XLSX export
  • Bulk search API access
  • Priority support
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Frequently Asked Questions

Everything you need to know

Where does the data come from?+
All data comes from Cook County Assessor (public record). This is public data updated regularly.
What property types are covered?+
Yes. All property types available in the dataset are included.
What is included in the PDF report?+
A 17-page report with: estimated market value, price trends, comparable sales, price distribution, transfer tax analysis, investment intelligence, rental yields, supply-demand signals, scorecard, price per sqft, size-adjusted valuation, construction era analysis, type premiums, and price forecasts.
How does the pricing work?+
Searching is completely free. Your first PDF report is free after providing your email. Additional reports are $5 each via secure Stripe checkout. Business subscribers ($150/mo) get unlimited reports.
Why are some sales excluded?+
Sales under $10,000 are filtered out as they typically represent ownership transfers between related parties rather than arm's-length market sales.
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