Sustainable materials, energy savings and smart home technology are high on the list of buyer wants in a home. But there are some other architectural and design trends that will change the way Americans live this year and beyond. When planning a remodel, it pays to pay attention to green features, as well as to improved floor plans that will make a home more comfortable, more appealing and more functional.  Here's a list of what's hot right now: Natural and Sustainable Materials Eco-consciousness and concerns about individual health and wellness prompted a return to natural woods and stone, as well as organic forms…