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Highlights The cost to add a second story is about $175,000, but a typical average is $100,000 to $250,000. The size of the addition and the home are the biggest cost factors, but homeowners will also ...

Q: We adore our Craftsman bungalow, but it’s starting to feel a little cramped. Is adding a second floor worth the investment? A: Adding a second-story addition to your home is a big decision, and one ...