$3,500 Healthy, Non-Toxic, Natural Home This house is made out of all-natural, healthy, non-toxic materials. It is energy efficient, and was build by it’s owners. It’s cost $3,500. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of new posts by email.