Here is mine. It was a tiny storage room in the basement.
After all its contents have been thrown away (who
wants anything that has gone to the basement?), it has been
upgraded to the status of darkroom. In fact, this happened
four or five years ago, but it has seen several changes along
this time. Now I think it has reached all its capabilities.
Here you have.
What you see in the borders of the image is the door of the room.
The only place to stand is the floor that can be seen at the bottom,
and I usually place a stool there.
I have managed to fit a Super Chromega DII (on the left), for 4x5,
and a LPL7700, for 6x6 and 35mm into 1.82 m^2 (1.3mx1.4m).
There isn't a lot of space left. By this reason, the trays have to be
arranged vertically (you can see them at the right hand side)
and the main drawback is that I can only enlarge up to 30cm x 40 cm.
But that is much better than anything I've done before.
Obviously, there is no water there, but I have a sink in an adjacent room.
Very convenient.
Well, people, now you see that space is no longer an excuse for
not darkrooming!
Best,
Pau