Keep it, unless the fireplace is actively in your way. Buyer preference on fireplaces splits close to evenly, even in warm climates. Some buyers treat one as a must-have for the look and the coziness; others never give it a thought. Because opinion divides like that, removing a fireplace rarely helps your resale and can turn off the buyers who wanted one, so keeping it is the safe default. If you dislike the look or want the floor space back, there are middle options short of full removal. Some owners drywall over the interior face and leave the exterior chimney in place, which cleans up the room without the big expense. Removing the chimney itself is a real structural and exterior job, and cost climbs fast, which is why most people leave the chimney standing even when they change the inside. One maintenance note: an unused fireplace can still let in drafts, and sealing the edges or servicing the flue can run a few hundred dollars. So keep it, choose the least invasive change if you want it gone visually, and budget a little for upkeep even if you never light it.