A Houseboat as a Small Home

Houseboats are pretty much by definition smaller than houses that are not boats.  I'm not sure what the square footage of this nice houseboat is, but I'm inclined to say it's considerably less than 500 square feet.

Houseboat exterior

Of course a houseboat doesn't have a yard in the common sense of the word.  They tend to take full advantage of any outdoor space, decks, roofs, what have you, to gain a little outdoor living space.  In this particular case, the outdoor spaces span many levels.  Stairs can eat-up a lot of space so ship's ladders are used to move between levels, both indoors and out.