The walk-in closet was a bedroom nobody slept in.

The job behind the photograph.

Russ did exactly this on a recent job: took the bedroom next to the master, opened the shared wall, ran the closet through and extended the bathroom into the rest of it. From the hallway you would not know the room had ever been there. That is the trick with borrowed space: the new opening has to be headed, cased and trimmed to match the house, and the old doorway has to disappear completely, floor included.

The mechanical side matters more than it sounds. A room becoming a closet loses its window, which changes how it is heated and vented. Lighting has to be added where there was one ceiling fixture. And the flooring has to run continuously through the new opening rather than meeting at a threshold that tells everyone what happened.

Smaller versions of the same job: built-in storage under a stair, a linen wall in a hallway, a pantry taken out of a corner of the kitchen, shelving and hanging built to the room rather than bought to fit it.