So basically, it is a barn that is changed and decorated to be a house to live. This kind of house is growingly popular to the people living in the country, especially in Texas. Texas is the place where barndominium is originated. There are many designs of barndominiums that you can choose, and one of them is L shaped barnominiums. The L shape will make the house get more rooms and will also feel bigger than the regular square or rectangular barndominiums. Ideas & Inspirations.