Two picky architects in a high-rise apartment didn't like the looks of hiding their cat's litter box in closets, or even under a bathroom sink. With just a few modifications, they turned some IKEA gear into a combination entryway table and hide-away cat palace.
If you're going to keep your cat's litter box right by the front door, you're going to need to be on top of regular emptying and cleaning. But it saves an apartment dweller or space-conscious home owner from having to sacrifice square footage to cat needs, and the feline gets a good deal of privacy in return.
After combining a Besta shelf and Besta Holmbo door, the only modification made was a cut to the middle vertical panel, to allow cats to climb into their hidden bathroom. These owners added contact paper to protect the shelves' particle boards, but the whole project won't take much more time than your standard IKEA assembly.