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Building Permit Search - Multi-City

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Building Permit Search - Multi-City

Building Permit Search - Multi-City

Search building permits across NYC, Chicago, LA, SF, and Austin via open data APIs. Get permit type, status, address, dates, and more.

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Pay per usage

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lulz bot

lulz bot

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Search building permits across 5 major US cities using official open data portals (Socrata/SODA APIs). Returns normalized permit data from NYC, Chicago, Los Angeles, San Francisco, and Austin.

Supported Cities & Data Sources

CitySourceDataset
New York CityNYC Open DataDOB Job Applications + DOB Now Permits
ChicagoChicago Data PortalBuilding Permits
Los AngelesLA Open DataLA Build Permits
San FranciscoSF Open DataBuilding Permits
AustinAustin Open DataIssued Construction Permits

Input Parameters

ParameterTypeDescription
citiesarrayCities to query: nyc, chicago, la, sf, austin, or all
searchAddressstringStreet address to search (partial match)
permitTypestringFilter by type: new building, alteration, demolition, etc.
statusstringFilter by status: issued, pending, expired, active, filed
dateFromstringStart date (YYYY-MM-DD)
dateTostringEnd date (YYYY-MM-DD)
maxResultsintegerMax results per city (1-200, default 50)

Example Input

{
"cities": ["nyc", "chicago"],
"searchAddress": "BROADWAY",
"permitType": "new building",
"maxResults": 25
}

Output Schema

Each result is normalized to a unified schema regardless of source city:

{
"city": "New York City",
"permitNumber": "321386512",
"permitType": "NB",
"status": "SIGNED OFF",
"address": "666 UNION ST BROOKLYN",
"description": "New 3-story residential building",
"applicantName": "JOHN SMITH",
"ownerName": "JANE DOE",
"contractorName": "ABC CONSTRUCTION LLC",
"estimatedCost": 500000,
"filingDate": "2024-01-15",
"issuedDate": "2024-03-20",
"expirationDate": null,
"latitude": 40.676829,
"longitude": -73.98157,
"sourceUrl": "https://data.cityofnewyork.us/resource/ic3t-wcy2.json",
"scrapedAt": "2024-03-20T12:00:00.000Z"
}

Use Cases

  • Real estate research: Find construction activity in target neighborhoods
  • Lead generation: Identify contractors and property owners filing permits
  • Market analysis: Track building trends across major metro areas
  • Competitor intelligence: Monitor new construction in your market
  • Compliance monitoring: Track permit status and expiration dates

Notes

  • All data comes from official city open data portals (no web scraping)
  • No proxy required for most use cases (these are public APIs)
  • If one city's API fails, the actor continues with remaining cities
  • NYC queries two datasets for comprehensive coverage
  • Field availability varies by city (some fields may be null)