There have been cats in our house for many years.  Dealing with a litterbox has always been an everyday job.  Scooping and cleaning the box  and sweeping up around it was just something that had to be done.  For years it never occurred to me that there could be a better way. The kitty outhouse deals with all of the problems of a litterbox.  All the bending, kneeling, odor, and litter on the floor are gone. There is no longer a room to be avoided because it contains a litterbox.   Instead, the litterbox is cleaned outside from a standing position.  Cats don't seem to mind going "out" to the litterbox no matter what the weather. Going outside to the litterbox provides another place to explore and adds that variety that cat's thrive on.

The Kitty Outhouse is approximately two feet square and stands just over six feet tall.  Cats enter on the top level and access the bottom level thru an opening to reach the litterbox. There is a door for access to clean the litterbox. A window on either side of the top level lets your cat check out the activity outside.  Carpeting on the top floor helps to minimize litter being tracked back into the house. Exterior plywood siding with grooves covers the outside and the roof is shingled. It is instantly recognized as a really small outhouse. 

The outhouse in the photo is sitting on a concrete pad.  An alternative to pouring a pad is to build the base with extended legs that can be set in the ground to give it stability. 

This outhouse is accessed by the cats thru a pet door in the wall a few inches above the floor.  If making a hole in your wall is not possible, there are several manufacturers that make pet doors that mount in a window. Some of these are referred to in the instructions with the plan package.  Also the photo shows a tunnel construction that accommodates both a vertical offset and a horizontal offset.  Ideally, the outhouse should be set on center with the pet door and tunnel so that only a vertical offset for the tunnel in needed. 

Key points that should be followed:
1. The pet door must always be accessible by your cat.
2. The outhouse should be aligned to the pet door and on a stable foundation.
3. Elevation of  the Outhouse should place the litterbox at a level where it can be scooped and cleaned from a standing position without bending.
4. If installing a wall access door always check that no electrical wiring or plumbing will be damaged.  (Cutting into an electrical line can produce extreme shock.)