Smart Location Database
Nationwide dataset of over 90 built-environment, land-use, and transit-access variables (density, land-use mix, street connectivity, transit proximity) by census block group, widely used in walkability and VMT research.
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Federal Permitting Dashboard
Government-wide tool tracking federal environmental review and authorization timelines for large or complex infrastructure projects under FAST-41, including a searchable Federal Environmental Review and Authorization Inventory and GIS data inventory.
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National Zoning Atlas
A collaborative national project that translates local zoning codes across the United States into a standardized, searchable, and visual database for comparing land use regulations.
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Fiscally Standardized Cities
Database that standardizes municipal fiscal data across major U.S. cities to enable consistent comparisons of local government revenues and expenditures.
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Housing and Economic Analysis Toolkit
Repository of numerous indexes and interactive maps that provide a wide swath of economic data across the United States.
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FHFA House Price Index (HPI)
Repeat-sales house price indexes based on tens of millions of home sales dating to the mid-1970s, covering all 50 states and 400+ cities; includes an interactive Top 100 Metro dashboard and downloadable datasets.
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Zillow Housing Data (ZHVI, ZORI, Inventory, New Construction)
Free, downloadable monthly housing market metrics — home values (ZHVI), observed rents (ZORI), for-sale inventory, new listings, and new construction — at multiple geographies back to the late 1990s.
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Housing and Homelessness Legislation Database
Searchable database of filed and enacted state housing and homelessness bills, updated weekly; complements NCSL’s broader 50-state bill tracking tools and housing/land-use toolkits.
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Building Permits Survey (BPS)
Monthly, year-to-date, and annual statistics on new privately-owned housing units authorized by building permits, by structure type and geography.
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New Privately-Owned Housing Units Authorized (PERMIT)
Long-run time series (1960-present) of seasonally adjusted housing units authorized by building permits, sourced from Census/HUD; easy for charting and time-series analysis.