Should Cats Ever Share a Boarding Unit? The Same-Household Rule Explained

Put two dogs from different families in adjacent runs and they'll mostly cope. Put two unfamiliar cats in one unit and you have a welfare problem, a disease-transmission problem, and very possibly an injury problem. Whether cats should ever share a boarding unit is the question that most cleanly separates software and facilities built for cats from those adapted from kennels. The answer isn't “never.” It's “only family — and only with consent.”
Cats are not pack animals
Dogs are social by default; cats are territorial by default. An unfamiliar cat in the same enclosed space isn't company — it's an intruder. Forced cohabitation produces chronic stress (hiding, food refusal, over-grooming), and stress in boarding cats is not cosmetic: it suppresses appetite and immunity precisely when the cat is exposed to an unfamiliar environment. Sharing between cats from different households also creates direct disease-transmission routes — shared bowls, litter and grooming — that separate units are specifically designed to prevent.
The one exception: the same household
Cats that already live together are a different case. Bonded housemates can find a familiar companion calming in an unfamiliar place, and many owners specifically ask for their cats to stay together. The dividing line is the household: cats from one home may share a unit; cats from different homes never should. UK licensing guidance under the Animal Welfare (Licensing of Activities Involving Animals) Regulations 2018 draws the same line — cats from different households are expected to be housed separately, and housing familiar cats together is something the owner should explicitly agree to.
Consent — and the right to separate
Even within one family, sharing should be the owner's documented choice, not your assumption. Two things belong in that consent: confirmation that the cats genuinely live together, and your authority to separate them mid-stay if their welfare requires it. Bonded cats can still fall out in an unfamiliar environment, and you don't want to be renegotiating housing by phone on day three of an owner's honeymoon. Get both up front, in writing, at booking time.
What this looks like as an operating policy
- Default: one cat, one unit. Separate housing is the baseline every cat gets unless someone chooses otherwise.
- Sharing is opt-in, per facility. Some catteries simply never share units, and that's a perfectly good policy.
- Only within one booking. Sharing is offered only among cats booked together by one family — there is no scenario where strangers end up in one unit to save space.
- Consent is captured, dated and stored — with the separate-if-needed clause included.
How The Kennel Manager encodes this
These rules aren't guidance in our help centre — they are how the system behaves. One-cat-per-unit is the default for every cattery; unit sharing for cats exists only behind a setting you deliberately switch on. When it is on, the booking flow offers sharing only within a single booking, so cats from different households can never be grouped — the option to mix strangers doesn't exist. And when an owner chooses sharing, the online booking captures their consent at that moment: confirmation the cats are from the same household, and authorisation to house them separately if welfare requires it, timestamped and kept with the booking. Dogs and cats, for completeness, can never share a unit under any setting.
If your current software lets you drop any two cats into one pen, it's telling you what animal it was designed for.