{"@context":{"@vocab":"https://schema.org/"},"@type":"Dataset","@id":"https://api.ai-analytics.org/building-permits/25-021#permits","name":"Building Permits — Norfolk County, MA","description":"Census Building Permits Survey for Norfolk County, MA: 1,194 housing units authorized in 2025 ($411,006,495 valuation), by structure type, 2015-2025.","spatialCoverage":"Norfolk County, MA","isAccessibleForFree":true,"license":"https://creativecommons.org/publicdomain/zero/1.0/","place_id":"25-021","county":{"county_id":397850584615952400,"state_fips":"25","county_fips":"021","place_id":"25-021","county_geoid":"25021","county_name":"Norfolk County","state_abbr":"MA","year_min":2015,"year_max":2025,"latest_units1":399,"latest_units2":10,"latest_units34":18,"latest_units5p":767,"latest_total_units":1194,"latest_total_value_usd":411006495,"trend":"[{\"year\": 2015, \"total_units\": 1441, \"total_value_usd\": 346805884}, {\"year\": 2016, \"total_units\": 1743, \"total_value_usd\": 494903860}, {\"year\": 2017, \"total_units\": 1739, \"total_value_usd\": 468261840}, {\"year\": 2018, \"total_units\": 2009, \"total_value_usd\": 540736760}, {\"year\": 2019, \"total_units\": 2078, \"total_value_usd\": 410086871}, {\"year\": 2020, \"total_units\": 1924, \"total_value_usd\": 451191771}, {\"year\": 2021, \"total_units\": 2418, \"total_value_usd\": 619075083}, {\"year\": 2022, \"total_units\": 2314, \"total_value_usd\": 616602660}, {\"year\": 2023, \"total_units\": 887, \"total_value_usd\": 363288170}, {\"year\": 2024, \"total_units\": 1224, \"total_value_usd\": 459159184}, {\"year\": 2025, \"total_units\": 1194, \"total_value_usd\": 411006495}]","ingested_at":"2026-06-26T15:41:42Z"},"trend":[{"year":2015,"total_units":1441,"total_value_usd":346805884},{"year":2016,"total_units":1743,"total_value_usd":494903860},{"year":2017,"total_units":1739,"total_value_usd":468261840},{"year":2018,"total_units":2009,"total_value_usd":540736760},{"year":2019,"total_units":2078,"total_value_usd":410086871},{"year":2020,"total_units":1924,"total_value_usd":451191771},{"year":2021,"total_units":2418,"total_value_usd":619075083},{"year":2022,"total_units":2314,"total_value_usd":616602660},{"year":2023,"total_units":887,"total_value_usd":363288170},{"year":2024,"total_units":1224,"total_value_usd":459159184},{"year":2025,"total_units":1194,"total_value_usd":411006495}],"_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":"2026-06-28T19:22:25.434Z"}}