{"@context":{"@vocab":"https://schema.org/"},"@type":"Dataset","@id":"https://api.ai-analytics.org/building-permits/25-013#permits","name":"Building Permits — Hampden County, MA","description":"Census Building Permits Survey for Hampden County, MA: 318 housing units authorized in 2025 ($94,512,368 valuation), by structure type, 2015-2025.","spatialCoverage":"Hampden County, MA","isAccessibleForFree":true,"license":"https://creativecommons.org/publicdomain/zero/1.0/","place_id":"25-013","county":{"county_id":6879994225513504000,"state_fips":"25","county_fips":"013","place_id":"25-013","county_geoid":"25013","county_name":"Hampden County","state_abbr":"MA","year_min":2015,"year_max":2025,"latest_units1":286,"latest_units2":14,"latest_units34":0,"latest_units5p":18,"latest_total_units":318,"latest_total_value_usd":94512368,"trend":"[{\"year\": 2015, \"total_units\": 270, \"total_value_usd\": 51332161}, {\"year\": 2016, \"total_units\": 328, \"total_value_usd\": 64497339}, {\"year\": 2017, \"total_units\": 232, \"total_value_usd\": 53653720}, {\"year\": 2018, \"total_units\": 291, \"total_value_usd\": 67674898}, {\"year\": 2019, \"total_units\": 258, \"total_value_usd\": 56179718}, {\"year\": 2020, \"total_units\": 320, \"total_value_usd\": 83498672}, {\"year\": 2021, \"total_units\": 263, \"total_value_usd\": 66731832}, {\"year\": 2022, \"total_units\": 254, \"total_value_usd\": 97358683}, {\"year\": 2023, \"total_units\": 360, \"total_value_usd\": 96833296}, {\"year\": 2024, \"total_units\": 443, \"total_value_usd\": 115829991}, {\"year\": 2025, \"total_units\": 318, \"total_value_usd\": 94512368}]","ingested_at":"2026-06-26T15:41:42Z"},"trend":[{"year":2015,"total_units":270,"total_value_usd":51332161},{"year":2016,"total_units":328,"total_value_usd":64497339},{"year":2017,"total_units":232,"total_value_usd":53653720},{"year":2018,"total_units":291,"total_value_usd":67674898},{"year":2019,"total_units":258,"total_value_usd":56179718},{"year":2020,"total_units":320,"total_value_usd":83498672},{"year":2021,"total_units":263,"total_value_usd":66731832},{"year":2022,"total_units":254,"total_value_usd":97358683},{"year":2023,"total_units":360,"total_value_usd":96833296},{"year":2024,"total_units":443,"total_value_usd":115829991},{"year":2025,"total_units":318,"total_value_usd":94512368}],"_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":"2026-06-29T10:22:26.053Z"}}