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9 Types of Home Additions That Add the Most Value—And What They Cost
Room Addition (Bump-Out)
Cost Estimate: $10,000 to $50,000+
Best for: Just about anyone
A room addition, often called a bump-out, involves building a new room attached to your existing layout or expanding an existing room.
For instance, you might add a den or guest bedroom to your ground floor or you might expand your kitchen by just a few feet to add a breakfast nook. This type of addition is perfect for homeowners who need just a little extra space in their home—and have room on their lot to add it.
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Pricing depends on the size of the addition and whether or not you're adding plumbing to it—plumbing always raises the price.
Sunroom
Cost Estimate: $5,000 to $80,000+
Best for: Plant lovers and sun worshippers
A sunroom is a versatile, light-filled space that brings the outdoors in without exposure to the elements.
These rooms typically feature large windows and can be used year-round if properly insulated. Of course, a four-season sunroom will cost more than a three-season sunroom,