I have a large spare room in my finished basement that we are not using. The room is private and will be locked at all times unless we are using the small storage closet that is inside of that room. There is also a security camera in the room for peace of mind. Would fit belongings of up to a 3 bedroom house or similar.
Because the unit is inside of my home, I’ll just require a 12-24 hour heads up for access.