{"@context":{"@vocab":"https://schema.org/"},"@type":"Dataset","@id":"https://api.ai-analytics.org/building-permits/34-021#permits","name":"Building Permits — Mercer County, NJ","description":"Census Building Permits Survey for Mercer County, NJ: 1,164 housing units authorized in 2025 ($220,872,201 valuation), by structure type, 2015-2025.","spatialCoverage":"Mercer County, NJ","isAccessibleForFree":true,"license":"https://creativecommons.org/publicdomain/zero/1.0/","place_id":"34-021","county":{"county_id":6410999129341353000,"state_fips":"34","county_fips":"021","place_id":"34-021","county_geoid":"34021","county_name":"Mercer County","state_abbr":"NJ","year_min":2015,"year_max":2025,"latest_units1":805,"latest_units2":8,"latest_units34":11,"latest_units5p":340,"latest_total_units":1164,"latest_total_value_usd":220872201,"trend":"[{\"year\": 2015, \"total_units\": 896, \"total_value_usd\": 107633846}, {\"year\": 2016, \"total_units\": 711, \"total_value_usd\": 81894231}, {\"year\": 2017, \"total_units\": 605, \"total_value_usd\": 84976521}, {\"year\": 2018, \"total_units\": 501, \"total_value_usd\": 54986755}, {\"year\": 2019, \"total_units\": 538, \"total_value_usd\": 52639959}, {\"year\": 2020, \"total_units\": 832, \"total_value_usd\": 115256126}, {\"year\": 2021, \"total_units\": 544, \"total_value_usd\": 53328304}, {\"year\": 2022, \"total_units\": 643, \"total_value_usd\": 49738788}, {\"year\": 2023, \"total_units\": 969, \"total_value_usd\": 127033665}, {\"year\": 2024, \"total_units\": 2026, \"total_value_usd\": 347204567}, {\"year\": 2025, \"total_units\": 1164, \"total_value_usd\": 220872201}]","ingested_at":"2026-06-26T15:41:42Z"},"trend":[{"year":2015,"total_units":896,"total_value_usd":107633846},{"year":2016,"total_units":711,"total_value_usd":81894231},{"year":2017,"total_units":605,"total_value_usd":84976521},{"year":2018,"total_units":501,"total_value_usd":54986755},{"year":2019,"total_units":538,"total_value_usd":52639959},{"year":2020,"total_units":832,"total_value_usd":115256126},{"year":2021,"total_units":544,"total_value_usd":53328304},{"year":2022,"total_units":643,"total_value_usd":49738788},{"year":2023,"total_units":969,"total_value_usd":127033665},{"year":2024,"total_units":2026,"total_value_usd":347204567},{"year":2025,"total_units":1164,"total_value_usd":220872201}],"_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":"2026-06-28T10:56:40.929Z"}}