Again, with this being your second question that you have posted about an individual property, I think that you should take the time to define your needs and concerns BEFORE you evaluate the "fit" of a specific property to your needs.
It sounds like you do have some valid concerns, but if you are just looking for advice before you pick a specific lot with a builder in this area, I would ALWAYS recommend that you hire a buyer's agent to represent you in that purchase, rather than just working directly with the builder. Keep in mind that the services of a professional buyer's agent do not actually cost you anything. Builder reps will try to convince you that they are giving you a "special deal" or a "discount" if you work directly with them, but our statistics show that an unrepresented buyer of new construction will usually end up with a much worse deal than the ones that have a buyer's agent represent them in that same development. ( and I only use the word "usually" because I could never provide the legal proof that it's more common than that)
Now, I am not soliciting you to use ME, but please find a buyer's rep that you feel is skilled and reputable, and then go out and make a great deal happen.