I have three fairly extensive layouts underway in my basement. Readers may be interested in how they share the space.

When visitors enter the room, the first thing they’ll see is my still-in-early-stages HO scale exhibition layout, CNR Pine Street. This occupies one side of a double-sided peninsula up the middle of the room.
Walking to the right and around the end of the peninsula reveals the in-progress Niagara Street and Eastchester Avenue scenes for my S scale interpretation of the Niagara St. Catharines & Toronto Railway. At some point, I’ll add a double-sided backdrop to separate these two layouts. (I already have the posts in place for this.) Across the aisle from the NS&T, my 7mm Scale Edwardian era Great Western Railway layout, Bydemill, occupies a long wall.

The NS&T continues into a “blob” of a space at the far end of this aisle. First, one encounters the NS&T’s interchange yard on a shorter peninsula to the left, with the car barn area across the aisle to the right and Ontario Street straight ahead. Geneva Street is on the other side of the short interchange peninsula.

As the photos show, there’s plenty of storage below the layouts for railway books, construction materials, and other stuff.