Tonkinese cats are among the most active and socially demanding cat breeds, and their living environment needs to reflect that. While they do not require an unusually large home, they absolutely require vertical space and environmental complexity. A small apartment can work well for a Tonkinese as long as it includes cat trees, shelving, and elevated perches that allow the cat to survey the room from above and move through the space on multiple levels.
Vertical territory is not optional for this breed. Tonkinese cats are confident climbers and will seek out the highest vantage point in any room. If you do not provide dedicated climbing structures, they will improvise — and that improvisation often involves the top of your refrigerator, bookshelves, or curtain rods. Investing in purpose-built vertical furniture is both a quality-of-life improvement for your cat and a preservation strategy for your home.
Because Tonkinese cats are deeply social and dislike being isolated, their primary living areas should overlap with the spaces where the household spends the most time. A cat tree tucked into a back bedroom will go largely unused, while the same tree placed in the living room or near a window with a view becomes a daily destination. Plan your layout around the cat's need to be near people, not separated from them.
If you have multiple cats, ensure that each cat has access to its own elevated resting spot and that there are enough pathways through the vertical space to prevent territorial bottlenecks. Tonkinese cats are generally sociable with other cats, but competition over prime perching spots can create tension in an under-furnished environment.