In addtition to the information below, the infrastructure available for the lot is also going to be an important variable,
Having an agent who works for you, and not for the seller or for the builder is the best way to get all the information and resources you will need to make the most of your home buying dollar.
The goal is to provide you with best home for you and your girlfiend, and that is a complicated process.
Buyer's REALTOR agents are not primarily salespeople, they are professionals that have a duty to serve your interests, just the way your lawyer would. Signing on with a buyer's agent who represents you will get you the best service, and almost all sellers anf builders have already agreed to pay for having you having an agent on your side.