how much land is required for an average duplex project
While the U.S. Energy Information Administration states that the average apartment is 861 square feet, the average duplex runs at 900 square feet. A duplex can appear in a free-standing structure of two or more dwellings, but these will not have common walls, and will only touch at floors or ceilings.his is the reason that a duplex building tends to be smaller in total size than an apartment building. For the purpose of this discussion we will look at a standard duplex containing four dwellings 900 square feet each.