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It depends on where you are expanding to. If it is an interior only job and there are no electrical or Plumbing hook-ups needed, then it could be as little as several hundred dollars. If the project is to expand outwards then you must consider the cost of siding, roofing, gutters, and foundation. The interior job could be done on the down low without any permits, but if you are adding a 20 x 20 room to your backyard then you have to. Estimated job costs $500 - for some simple wall removal, small amount of drywall and some paint, upwards of $10,000 -20,000 if you are expanding outwards. The price is hard to say without clear plans though. You could attach a $20 tent to a window and call it a room it you wanted.

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15y ago

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