Build upward, because a small flat still has walls
A Domestic Shorthair in a small flat is short of territory, not just entertainment, and vertical space solves both. A tall, stable scratching post with a top platform, a cleared run of shelves, or the top of a wardrobe made accessible with a step gives her somewhere to climb, scratch and watch the room from above. Cats read height as safety and status; a shorthair who can get above the action will spend contented hours supervising the flat instead of pacing it.
Keep the vertical route genuinely usable. Shelves need non-slip surfaces and gaps she can jump confidently, and the scratching post must not wobble — one frightening tip will retire a post permanently. Put a second scratching surface near where she sleeps, since most cats scratch on waking, and you would rather she chose sisal than the sofa arm beside her bed.
Rotate few toys instead of owning many
A Domestic Shorthair surrounded by thirty toys on the floor is usually entertained by none of them. Keep three or four toys out at a time — a wand toy is for sessions with you, so that one lives in a cupboard — and swap the loose toys every few days from a small stored set.
Solo entertainment needs to include food work. Feed part of her daily ration from a puzzle feeder, a lick mat or treats hidden around one room for her to hunt out. In a small flat a five-minute food search replaces the patrol of a garden she does not have, and it tires her mind in a way a rolling ball never quite manages.
Play in short sessions that end like a hunt
A Domestic Shorthair's play drive runs in bursts, so schedule two or three sessions of about ten minutes across the day rather than one marathon. Move the wand toy like prey: away from her, around corners, pausing and twitching, never straight at her face. Let her catch it regularly, and at the end let her win the final pounce, then feed a small meal or a few treats.
Time one session before you leave for work and one in the evening before your own wind-down. A flat that goes silent and empty right after breakfast is the classic setup for a cat who races around at midnight, because her best energy never got spent. If she wakes you at night, do not feed or play then; instead, move the last session later and leave a puzzle feeder out overnight so the small hours hold something besides your bedroom door.
Share the routine so it survives busy weeks
A Domestic Shorthair in a one-person flat depends on that person's diary, and in a shared flat she depends on nobody assuming someone else played with her. Write the rhythm down where everyone sees it: morning session, toy swap days, puzzle feeder at night, shelf and post checks for wobble.
Watch what she actually uses over a fortnight and cut what she ignores. Some shorthairs live for the window perch and barely touch puzzles; others ignore shelves and want two extra minutes of wand play. The flat is small, so every item in it should be earning its place in her day. If her appetite, weight or grooming changes, or she stops playing altogether, a veterinarian should check her over, since a cat going quiet in a small space is easy to misread as contentment. To keep the rhythm shared, KinsLe Care Teams lets each person in the flat hold a named duty — play session, toy rotation, overnight puzzle — ticked off with a timestamp when done.