The Bay Area Property Tax Map

The Bay Area Property Tax Map shows how much property tax is paid by individual buildings in the Bay Area. Using the map everyone can see how much property tax is paid by every single building and home owners can see how their property tax compares to the amount paid by their neighbors.

The red markers on the map show the properties which are within the highest 10% in the current map view. The green markers show the properties which are within the lowest 10% in the current view. Yellow markers show clusters of properties. You can click on the yellow markers to see all the individual property taxes paid within that building. If you click on a property's marker on the map you can view the building's address, its exact yearly tax assessment and click on a link which will take you to the property's tax records page. 

The Bay Area Property Tax Map's GitHub page includes instructions on how you can add missing county data to the map from a county's property tax website.