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.
1 On average, plan on spending anywhere from $1.50 to as much as $2.85 per square foot to have a complete system installed. 2  For example, a home that is 1,600 square feet should cost anywhere from $1,600 to $4,600 for a complete sprinkler system.