Construction costs vary depending on the location of the features as well as the size of the house. Among the costs to be considered are land, Building Materials , work force , Water , Water collection system, Electricity generation and storage system and any landscaping.If you want to build a small off-grid home, the average national cost would be around $ 45,000, with most people paying between $ 30,000 and $ 60,000. If you compare it with the average price of a house in 2021, which was $ 361700, you will find significant cost savings.But you should keep in mind that there are other costs such as the cost of land and building permits and taxes, etc., which should be included in the total price. Although the initial costs may be high, these homes are more affordable than traditional homes in the long run. Depending on where you live, you can save more than $ 1,000 a year.