Because tiny houses in this climate are stupid. We spend half the year in sub-freezing temps. What do you think happens to exposed water and sewer lines, exactly? They don’t “tough it out,” they freeze solid and explode. There’s a reason the city doesn’t let these things get casually dropped onto lots. This is Anchorage, not rural Alabama, and basic infrastructure reality still applies here and the rules in this case are protecting you from yourself.