This is the bus stop of the C10 bus to reach the town of Lenno, it's called “Lenno - Chiesa”.
Another alternative bus stop to reach Villa Balbianello is “Lenno–Bar Ambra”. I actually got off at this bus stop as I didn't know it existed looking at the bus timetable. Just heard Lenno and got off immediately ahah. It's actually closer to the villa, but like 2/3 minutes.
I'd get off at “Lenno - Chiesa” anyway, so you can reach the beautiful waterfront promenade and port of Lenno :)