this is so my dream house ....checkout the link...
http://mycatgoma.com/2008/10/house-designed-for-cats-ultimate-kitteh.html
http://mycatgoma.com/2008/10/ultimate-cat-house-from-japan-part-2.html
http://mycatgoma.com/2009/11/house-design-for-cats-cat-house-in.html
http://mycatgoma.com/2011/09/house-designed-for-cats-ultimate-cat.html