New privately-owned residential construction authorized by building permit, per US county and year (2015–2025): buildings, housing units, and construction valuation by structure type — single-family (1-unit), 2-units, 3-4 units, and 5+ units (multifamily). 33,376 county-years across 3,057 counties; 1.43M units / $379B authorized in 2025. Aggregate counts — zero PII. A leading housing-supply indicator that joins to FHFA house prices, USDA ag, and RMA crop insurance by county GEOID. Canonical /building-permits/{state_fips}-{county_fips} page per county. From the Census Building Permits Survey bulk (key-free). Note: Connecticut's 2023 FIPS recode means pre/post-2023 CT GEOIDs are distinct.
The listed URL identifies a referenced source; it does not by itself document the ingestion endpoint. Referenced source URL: https://www.census.gov/construction/bps/. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. Metadata and normalization authored by MORVS (AI Analytics LLC) are CC0 only where expressly stated.