{"@context":{"@vocab":"https://schema.org/"},"@type":"Dataset","@id":"https://api.ai-analytics.org/building-permits/17-031#permits","name":"Building Permits — Cook County, IL","description":"Census Building Permits Survey for Cook County, IL: 4,969 housing units authorized in 2025 ($1,533,366,236 valuation), by structure type, 2015-2025.","spatialCoverage":"Cook County, IL","isAccessibleForFree":true,"license":"https://creativecommons.org/publicdomain/zero/1.0/","place_id":"17-031","county":{"county_id":8226622007447337000,"state_fips":"17","county_fips":"031","place_id":"17-031","county_geoid":"17031","county_name":"Cook County","state_abbr":"IL","year_min":2015,"year_max":2025,"latest_units1":1191,"latest_units2":178,"latest_units34":512,"latest_units5p":3088,"latest_total_units":4969,"latest_total_value_usd":1533366236,"trend":"[{\"year\": 2015, \"total_units\": 7855, \"total_value_usd\": 1650540892}, {\"year\": 2016, \"total_units\": 10956, \"total_value_usd\": 1909931323}, {\"year\": 2017, \"total_units\": 11595, \"total_value_usd\": 1866747581}, {\"year\": 2018, \"total_units\": 8199, \"total_value_usd\": 1280758737}, {\"year\": 2019, \"total_units\": 9556, \"total_value_usd\": 1368987711}, {\"year\": 2020, \"total_units\": 5579, \"total_value_usd\": 961806092}, {\"year\": 2021, \"total_units\": 6789, \"total_value_usd\": 1184517159}, {\"year\": 2022, \"total_units\": 8325, \"total_value_usd\": 1612211427}, {\"year\": 2023, \"total_units\": 4854, \"total_value_usd\": 1279204493}, {\"year\": 2024, \"total_units\": 6507, \"total_value_usd\": 1864446946}, {\"year\": 2025, \"total_units\": 4969, \"total_value_usd\": 1533366236}]","ingested_at":"2026-06-26T15:41:42Z"},"trend":[{"year":2015,"total_units":7855,"total_value_usd":1650540892},{"year":2016,"total_units":10956,"total_value_usd":1909931323},{"year":2017,"total_units":11595,"total_value_usd":1866747581},{"year":2018,"total_units":8199,"total_value_usd":1280758737},{"year":2019,"total_units":9556,"total_value_usd":1368987711},{"year":2020,"total_units":5579,"total_value_usd":961806092},{"year":2021,"total_units":6789,"total_value_usd":1184517159},{"year":2022,"total_units":8325,"total_value_usd":1612211427},{"year":2023,"total_units":4854,"total_value_usd":1279204493},{"year":2024,"total_units":6507,"total_value_usd":1864446946},{"year":2025,"total_units":4969,"total_value_usd":1533366236}],"_source":{"data_provider":"AI Analytics","data_provider_url":"https://api.ai-analytics.org","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://www.census.gov/construction/bps/","primary_source_dataset":"Census Building Permits Survey — County annual (co{YYYY}a)","generated_at":"2026-06-28T21:07:41.629Z"}}