For a discussion. of the related concepts of entrepreneurial incentive, developerâs profit, contractorâs profit, profit, and project profit, see Appraisal Institute, The Appraisal of Real Estate, 13th ed.
According to the Fire Protection Research Organization's 2009 Fire Sprinkler Cost Assessment, sprinkler installation costs homebuilders $0.38-$3.66 per sprinklered square foot, with an average cost of $1.61 per sprinklered square foot. For an average 2,200-square-foot home, expect to pay about $3,542.
Cost of installing sprinklers declines. According to a recent NFPA research report, fire sprinkler costs have dropped in recent years. âIn 2008, the average cost we found was $1.61 per square foot of installed sprinklers,â Carli says.