OpenCMA
Free property intelligence for Ohio and California — tax records, valuations, environmental risk, and comparable market analysis from public data.
Explore the Map
Property Data
Assessed values, tax history, sales records, building details, and ownership from county auditors.
Market Analysis
Automated CMA with comparable sales, dollar adjustments, value estimates, and confidence ratings.
Tax Burden
Property tax, municipal income tax, school district income tax, and assessment ratio analysis.
Environmental Risk
FEMA flood zones, earthquake history, wetlands, EPA sites, groundwater vulnerability, and CA hazard zones.
Demographics
Census tract income, home values, vacancy, education, poverty rates, and county/state comparisons.
Walkability & Amenities
Walk, Transit, and Bike Scores plus nearby grocery, parks, transit, schools, and more from OSM.
Built on free public data: county auditors, OGRIP, US Census, FEMA, USGS, EPA, Ohio DNR, CA CGS, OpenStreetMap, Walk Score, and OpenRouteService.