We maintain a small colony of displaced feral cats in our barn for adoption as barn cats. Their home is behind those two large viewing windows. They have free access to a 3/4-acre cat-fenced corral to the left. Entrance to their room is through the old milkhouse to the right.
The milkhouse provides an entry area for storage of supplies and a second door into the feral cat room to prevent their accidental escape.
This is their room (looking South toward the corral). We've left the old horse stalls in place, simply cleaned and whitewashed everything. Along the left wall (front to back), there's a feral cat house of the type we provide colony caregivers whose colony lacks adequate shelter, the cats' feeding staion and a cage that's used for the introduction of new cats to the colony.
This is a view from the corral end (looking North). The brown strip at the top is one of the cats' many high walkways and the structure inside the stall is one of the many ramps they have to get up and down from the walkways.
Looking into the stall next to the corral, you see more of their ramps and walkways — and platforms at the base of every window where they can look out and nap in the sun. To the right of the right window, you'll see two cat doors that provide access to the corral — and there are two more to the right of the left window. And if you'll look closely at the top left, you'll see one of the cats napping on one of the high walkways.
The stall at the North end has bales of marsh grass judiciously stacked to provide a labyinth of "hidey holes" and tunnels where the cats can feel safe and warm when they feel the need.