Tool to view NYC Borough Block and Lots (BBLs) on a map.  Example usage:  Just add BBL's (as NYC calls them) 

Plus a new and improved mapping tool that lets you share BBL maps easily, see and example maps at

Sharing a map is as easy as getting a comma delimited list of BBLs and pasting them in the input box and the share link will be generated.  For example, see

For example,  Large 2018 Article 7 Open Petitions in Brooklyn See and