Modern or contemporary garden styles also work well with coastal style. The clean lines and minimalistic approach to plantings pair nicely with the often sparse vegetation to be found at the shore. Here the colors of the house and concrete blend with the dunes beyond just as the purposely planted trees match the colors of the native specimens.
Even a small pool looks nice and can be functional. Could be covered off season with a removable deck like plank of wood and used as a gardening space.