Generally, property in places where the landscape is well-maintained is worth substantially more than property where half the lawns are uncut and the fence lines are overgrown with weeds.

The US is a land of individualists who also have most of their wealth tied up in their homes so property ordinances are popular, despite the “I can do whatever I want” attitude of American culture.

Obviously, as can be seen from the word "International" in the name.

(See also: "World League", etc, etc ad nauseam.)