This community is supposed to have only about 20 homes built on about on 1/2 acre lot each. Some of Tarrant counties finest custom builders are there including Cliff Lewis, Jeffreis Custom Homes, Pinnacle, Rivertree and a few others. Several of them have some inventory so they are ready to deal.
Contrary to what you believe based on one misinterpreted answer Beverly, I am VERY familiar with Southlake having lived and sold real estate there for over a decade.
I don't think you will find them in Southlake or Coppell since the land would be too expensive and wouldn't be a good return for them for the homes they build.
Have a great day.