A world-wide registry of Sukkahs has been set up, and is listed online at localsukkah.org.
The directory has been designed for Jews to locate a Sukkah near to them, so that they can go there to eat. The idea of this service is not to list every Sukkah, but to try and have a Sukkah listed for every area in which Jewish people may find themselves during Sukkot. The main focus of this service is to enable people who work on chol-hamoed to eat lunch in a Sukkah that is close to their place of work. As all listings are confirmed annually prior to publication, the benefit of the list is that users of it can be almost certain that the Sukkah that they wish to use is indeed available prior to heading there. The list also includes details of numerous Sukkahs that would otherwise remain unknown to many users of the list.
The service is also available via Android and Apple apps.
If you have a Sukkah that you would like to register, email details to firstname.lastname@example.org.