With builders, this is nearly impossible to find. Builders are beginning to see tremendous traffic through their model homes as well as an increase in contracts to build. If I were you, I would pursue newer built homes in communities still currently selling new builds. You would be pursuing a lease to purchase with the actual homeowner; however, still obtaining a newer built home. In my experience, a homeowner looking to compete with the builder, has extreme difficulty in selling their home, unless they've discounted their property well under the current builder prices.
I hope this helps.
Century 21 Diversified