- ACRIS
- Buildings Information System (BIS)
- City Council – Legislative Research Center
- CityAdmin
- Honest Buildings
- Laws of the City of New York
- NYC Board of Standards & Appeals
- NYC Department of City Planning
- NYC Landmarks Preservation Commission
- NYC Landmarks Preservation Commission’s Rowhouse Manual (pdf)
- NYC Rules
- NYC SPEED
- NYC Zoning Resolution
- NYC’s Zoning & Land Use (ZoLa) GIS application
- NYCityMap (DoITT)
- OASIS Map
- Property Shark
