Each project will vary on a case to case basis, depending upon the scope of work. For example, a small apartment building with six units and one ordinary steel moment-resisting frame (OMF) and concrete grade beam footing may cost as low as $30,000 to retrofit, while other, larger apartment buildings, may be in the range of several hundred-thousand dollars to complete. Each project will vary depending upon the structural integrity of the property. The damage that is caused from a soft story collapsing can cost you the entire building. The damage can be so bad that it is not even possible to repair. This can be completely avoided if you have your soft story repaired. It is a very small price to pay to get your soft story retrofit completed compared to how much it can cost to repair the building damage following an earthquake.. You will be saving money on repairs and saving the lives of the people that live inside.