I would suggest that you find a local realtor that has sold new construction in the area you are considering purchasing. They should have experience in new constructions sales, and should be able to provide you with samples of successfully negotiated and sold homes. Ask them for past spec sheets that contain every detail that would be required to build a house. You don't want to find out that you made an offer, it was accepted, then find out that the kitchen wasn't included, or that you only had a $500.00 credit for your kitchen, etc. Make sure you higher a realtor as a "buyers broker" to represent your best interests. When you know what type of kitchen, baths, bedrooms, etc that you would like, make a list of every detail that you can think of, including ceiling heights in the basement and other levels, fireplaces, energy star efficiency, etc, refer to the realtor's spec sheet that she/he has provided and add those details to be included in the purchase price that you offer, and most importantly, ask for things that have sold in the last 4-6 months so that you know you won't overpay...Good luck.