ATTOM Data Alternative: Free & Self-Serve Property Data
Looking for a ATTOM alternative? If your goal is property facts you can download in bulk and redistribute, an open public-records dataset covers it — free, CC0, and self-serve.
What ATTOM is
ATTOM is an enterprise property-data provider. Access is typically arranged through a sales process and licensing, oriented to larger commercial contracts.
The open alternative
If you want to start immediately without a sales call or enterprise contract, a free self-serve dataset is the faster path. RealEstateDataset is a free, CC0 dataset of ~146M U.S. properties — address, beds, baths, square footage, lot size, year built, property type, status, last sold price/date, and nested price/tax history in Parquet. Download the whole country or a single state, county, or ZIP. Every record's id is a live endpoint on Straply's API for current, one-property lookups.
How to decide
Want to own the data, run unlimited analysis, and redistribute it? Start with the free bulk file. Need a specific property refreshed on demand? Use the API. Compare the whole landscape in real estate data sources, or see the fields in the data dictionary.
Frequently asked
Is there a free ATTOM alternative?
What's included per property?
Do I have to talk to sales?