Connecticut Property Assessments - Statewide CAMA Roll

Look up US property records by address, parcel number or property id and read the full record: owner and mailing address, beds, baths, size, year built, lot, assessed and market value, tax, full sale history, AVM estimate with confidence, rental value and home equity. Bring your own key.

NY Property Assessments - Parcels, Owners & 5-Year Value Trail

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New York property assessment rolls (public open data, 23.6M records, 2021-2025): every parcel with its owner, mailing address, exemptions and six value columns - plus each parcel's exact year-over-year value movement. Excludes New York City, which files separately.

All 2.67M Connecticut state credentials (public open data): every professional licence, business registration and brand registration the State issues. Holder name, credential type and number, issuing board, status, dates and address. Search by name, type, status, city or ZIP.

Cook County Parcel Owners - Names & Mailing Addresses

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Cook County Assessor parcel address file (public open data, 1.86M parcels per roll, 1999-2026): the owner of record AND the taxpayer of record, each with its full mailing address - they differ on 32.9% of parcels. Search by owner, taxpayer, city, ZIP or mailing state; find absentee owners.

Maryland Property Assessments - Values, Structure & Sales

j0401/md-property-assessments

All 2.44M Maryland real-property assessment accounts (public open data, 24 jurisdictions): assessment values, land/improvement split, CAMA structure (year built, sq ft, units, grade, type), last recorded sale with seller name, exemptions, homestead. Search by county, city, ZIP, address or sale date.

DC Building Permits - 2009 to Present

j0401/dc-building-permits

Washington DC building permits (public open data, year layers 2009-2026): type/subtype/category, status, work description, applicant and owner, fees, address with ward/ANC/SMD, zoning and the SSL parcel key that joins to DC property records.

CT UCC Filings - Secured Lien & Debtor Search

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Connecticut UCC financing-statement index (public open data, 846k debtor records): the public record of secured claims on a business or person - both debtor and secured party with names and addresses, the filing type, the lien class (OFS / MUNICIPAL / IRS / LABOR) and the acceptance and lapse dates.

CT Underground Storage Tanks - Facility & Enforcement Register

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Connecticut's underground storage tank register (public open data): 49.4K tank records across 12,752 facilities, with the named responsible parties, inspection findings and violation text, and DEEP enforcement actions (field NOV, warning letter, red tag, consent order) linked on one facility id.

Oregon Business Registry - Entities, Agents & Addresses

j0401/or-business-registry

Oregon Secretary of State business registry (public open data, 565,827 entities across 1.58M role records): every registered business with its entity type, principal place of business, mailing address, registered agent and authorized representative, and organizing jurisdiction.

Chicago Business Licenses - Full History & Active

j0401/chicago-business-licenses

Chicago business licenses (public open data, 1.2M records, full history since 2002): every license event with licensee and DBA, address / ward / community area, class, business activity and the application-to-expiration lifecycle. Filter by class/status/name/ward/date or pull the live slice.