Home Addition Calculator. On average addition cost per square foot is 125 400. An average 300 square foot addition costs 25 800 to 62 400 while a 400 square foot addition runs 34 400 to 83 200.
Most homeowners report spending between 20 708 and 71 517. Your total project cost will vary greatly depending on the type of addition materials used labor and location of the job. The average cost to build an addition or add a room to your home is 46 107.
Room addition cost calculator the size of your addition types of materials you use prep work and extra features like built in shelves will all impact the total cost of your room addition.
An average 300 square foot addition costs 25 800 to 62 400 while a 400 square foot addition runs 34 400 to 83 200. An average 300 square foot addition costs 25 800 to 62 400 while a 400 square foot addition runs 34 400 to 83 200. Scroll to the bottom of the page to find links to the most popular renovation plans which include project costs as well as 3d interior and exterior renderings. Your total project cost will vary greatly depending on the type of addition materials used labor and location of the job.