Living on a modern housing estate with houses closely packed, I do my winter solar observing through an open upstairs window. It does limit the times that I can observe, but it also provides some protection from the wind. With an 80mm refractor, it can easily be moved to suit the sun’s position. Seeing will always be limited by looking over adjacent roof tops with the central heating on, but it usualy does work fine. I did get a look around Mt Wilson back in 1991, but no solar viewing then!