Hate to hijack, but this 10' wide house in Long Beach is listed as the world's skinniest in Guiness. It's 3 stories and the lot is 10 feet, so the interior is more like 9. People have lived there all along, so few have seen the inside. It's 832sq. ft. and was built circa 1932 with a permit. The car you see in the pic is actually in the neighbor's drive.