As a real estate professional, the answer to your question is no, at least none that I know of. My question to you is why would you want that anyway? Even if a local builder were willing to do that, he'd only pay you a portion of the true market value of your home. Think about it, he doesn't want to buy and hold your home. He wants to offload it asap, so he's going to have to buy it cheap from you and sell it at a competitive price to get it off his books quickly. Also, we are in a seller's market in Dayton, so you should have no problem selling your existing home quickly if you choose a realtor who prices the home appropriately and one that is a marketing machine, such as myself. Why let the builder cut you out of your own equity when the market will support you keeping it for yourself??