The dataset comes from the San Francisco City Open Data :
https://data.sfgov.org/Housing-and-Buildings/Building-Permits/i98e-djp9
The geolocation coordinates were exctracted with the help of the Nominatim API (a search engine for OpenStreetMap data):
https://nominatim.openstreetmap.org/search?q=
The data were cleaned and processed with R and then visualized with Tableau.
