Considering adding a second story to your home, but want to know how much it will cost? This guide will help you answer the question. Second Floor Addition Cost Per Square Foot On average, a second-story addition costs $150 to $250 per square foot across the U.S. That means a full second floor-say, 1,000 square feet-can run $150,000 to $250,000, depending on how fancy you get.
If you're only adding part of a second story, like a bonus room or master suite, it'll cost less. But square foot for square foot, partial. The most common 2 story addition transforms the existing house into an L or T shape as show in the picture on the right.
A common two story addition or multi. Below is an example of a partial second-story addition in California: Source: (Design Everest) Source: (Design Everest) Bonus room addition Another way to increase your living or storage space without expanding your house's footprint is to add a bonus room over the garage. The cost to add a second story ranges from $100,000 to $250,000, though many homeowners spend about $175,000 to gain some much.
Adding a second story starts at around $65,000 for one room and can go as high as $600,000 for more elaborate work. The average cost for adding a second story to a house is $100 to $300 per square foot. The average cost to add a second story is $200 to $500 per square foot for materials and labor.
A full second floor addition costs $200,000 to $750,000+. The average cost to add a second story falls between $100,000 and $250,000. Most homeowners spend an average of $175,000, with some projects costing up to $600,000, depending on the scope and finishes.
The addition size, material requirements, quality of finishings, permits, and cost of temporary housing all impact the total price. Expect to reinforce, repair, or even replace the foundation so. Highlights Choosing to convert a vaulted ceiling or just add a dormer can save you $550,000+ instead of adding a full second story.
Any second-story addition you make will require the cost of general contractors, permits, and demolition. Depending on your home, you may also need to reinforce your foundation, which could cost about $5,000 or more. Calculate the cost of adding a second floor to your home based on square footage, finishes, and structural upgrades to help plan major home expansions.