8. Build the Addition Up or In
It's almost always more expensive to
build your addition outward than upward. Foundation work (for building outward) is expensive. And it's even cheaper to build inward than upward. Got any spare rooms you can repurpose for other uses? If function rather than space is what you're looking for, seriously consider building inward.
7. Avoid Moving the Plumbing
After you get the
estimate from the plumber, you may have second thoughts about moving the kitchen sink five feet to the left. Plumbing work is expensive on its own; moving the plumbing can double the cost, or more. Admittedly, easier said than done, since half the reason for remodeling is often to
redesign the kitchen floor plan.
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