when you open this forum, the message at the first page says 3D models are no longer being accepted for Google Earth. This is true
, although it is sad. There is not such a process anymore to add buildings to Google Earth.
Previously, buildings needed to be current (finished, but it was not very strictly checked, only from satellite photo). You would upload your model to 3D Warehouse
(and you still can
). Then later when the building is finished you would check the box "ready for Google Earth". This is now not possible anymore.