The basement is where the office is moving. The pics below are from awhile ago so in reality there is a lot more "stuff" being stored down there that will need to be reorganized/trashed/donated etc. The actual space where the office will be (you can see that area - it is the picture where the TV is) is pretty finished off. There are real walls, ceiling, a door, a closet and trim in that area. However, like the rest of the basement the floors are concrete.
We plan on removing the weird shower and replace with at minimum a large "work/laundry" sink and possibly a tiny half-bath. We also think we will closet off the furnace/hot water heater. And, separately, closet off the washer / dryer and finish the walls behind those. Shelving for detergent and platforms to raise them higher are planned for in the large closet too.
We also will add a door in a long wall where there isn't one to add easy access to some valves.
We also plan on finishing the floors in some way. This will require some work as the floors are not at all level. The ceiling in the presently unfinished area also needs replacement - it is cracking and crumbling in places.
A workbench area will be retained for tools/projects etc.
As I am sure some are concerned (knock on wood) there has never been water in the basement since we have lived here, nor is there evidence there ever has been. The old owners had a child sleeping down there, so I can't imagine they had any issues either.
Lastly, I am slowing reorganizing and cleaning the 3rd floor and making a play space up there. Jack and I are already spending at least an hour a two a day there and I think we may be heading in the direction to make it the main play space. This would be great as a) there is no TV there so no temptation for either of us, and b) would allow our living room to be slightly less toy-cluttered. Much of the floor needs to be retained at this point for storage, but it is a big room, thankfully!
At some point soonish we plan on replacing the carpet and painting the walls.
For memories sake, here is what the 3rd floor looks like empty(ish):