All property owners fear new codes and regulations because of cost. Unfortunately some can not be avoided and are necessary changes to keep occupants safe. Retrofitting a building with sprinklers is daunting but should it be required no matter what the cost is? How about alarms? Some defects may not be able to be changed as in the high rises in England only having one stair case in high rises. I can’t imagine any builder allowing that but it seems to be common.