Blueprint is an independent app. It is not affiliated with, endorsed by, or operated by any government agency or entity. Grades and scores are Blueprint's own calculation from public records, not an official government rating. The sources below are the official, public open-data services Blueprint reads directly on your device.
Blueprint reads only free, public records published by official government bodies. This page lists the source behind every market the app covers. Records can be incomplete or delayed at the source, and coverage varies by city, so a grade is a starting point for your own research, not the final word. Always verify in person.
United States: national area and hazard layer
Applied to any US address as area context, not part of a building's A to F grade.
United States: city open-data portals
- New York City NY
- Buffalo NY
- San Francisco CA
- Los Angeles CA
- San Jose CA
- Chicago IL
- Boston MA
- Dallas TX
- Fort Worth TX
- San Antonio TX
- Austin TX
- Philadelphia PA
- Pittsburgh PA
- Washington DC
- Hartford CT
- Baltimore MD
- Miami-Dade FL
- Detroit MI
- Cincinnati OH
- Columbus OH
- Cleveland OH
- New Orleans LA
- Seattle WA
- Minneapolis MN
- Kansas City MO
- Nashville TN
- Charlotte NC
- Louisville KY
- Las Vegas NV
- Tucson AZ
- Omaha NE
- Augusta GA
- Norfolk VA
- Des Moines IA
- Billings MT
- Syracuse NY
- Tacoma WA
- Montgomery AL
- Columbia SC
- Mesa AZ
Canada: city open-data portals
- Vancouver BC
- Toronto ON
- Calgary AB
- Edmonton AB
- Montreal QC
- Quebec City QC
- Victoria BC
- Halifax NS
- Winnipeg MB
- Laval QC
- Longueuil QC
- Mississauga ON
- Brampton ON
- Hamilton ON
- Vaughan ON
- Kitchener ON
- Waterloo ON
- Saint John NB
- Airdrie AB
- Coquitlam BC
- Delta BC
- Kamloops BC
- Kingston ON
- Barrie ON
- Burlington ON
- Surrey BC
- Cambridge ON
- St. Catharines ON
- Greater Sudbury ON
- Niagara Falls ON
- Strathcona County AB
United Kingdom
France
- Base Adresse Nationale (geocoding)
- ADEME DPE register (official A to G energy grade; see how France is graded)
- Georisques (radon, seismic risk)
Switzerland
Italy
- Nominatim / OpenStreetMap (geocoding)
- Regione Lombardia CENED open data (official A4 to G APE energy grade; see how Italy is graded)
Spain
Israel
Australia
Japan
Colombia
South Africa
Worldwide
- OpenStreetMap (Nominatim geocoding and Overpass nearby transit and greenspace)
- Open-Meteo Air Quality (European AQI for the neighbourhood area-risk score; see how it is scored)
Worldwide, any other address is geocoded and routed to the right pipeline above, or shown as a generic area view drawn from the same official sources where a per-building record is not yet wired. For how the grade itself is calculated, see how we calculate grades.
Spotted a source that looks wrong or out of date? Email hello+blueprint@vasly.app and we will check it.