Hey Emily,

Where about in Honor Oak are you?

We are based at the bottom of Brockley Rise/Stanstead Road and there is a really nasty black cat that frequently breaks into our house! (We also own a white cat and a tabby - hoping they are not your other visitors!).

In terms of deterrents, I know that cats don't really like the smell of oranges/citrus or vinegar - could you try spraying that around the edge of your property and leave some orange/lemon peels at access points?

Hope your own kitties are okay!