When scoping out newer neighborhoods searching new construction, having a knowledgeable agent with you is vital. will help you navigate the seeming infinite number of new homes today to find one that's perfect for your family.
In real estate, you can always negotiate. However, with new construction, it depends on the developer and how long the home has been available. Developers in new additions like to keep prices near their asking point because buyers already in the area expect new construction to be comparably priced to what they already purchased. (You'll appreciate that same courtesy if there are undeveloped lots near the home you eventually purchase!) But, depending on how far along the project is and the local market, a developer will often allow a few concessions.
For example, if the home is pretty much move-in ready, you have little to no negotiating powers. But if the home has been sitting fully furnished, like a show or model home, and there haven't been many offers - then the builder might be willing to work with you. The longer the home has been on the market, the more the builder has invested.
In cases where a builder won't budge, ask for assistance with other aspects of the transaction. Ask for them to pay a share of the closing costs, or more amenities, like appliance upgrades, a garage door opener, a fence or landscaping, or an extended home warranty. Or take the contrary route. If a home is nearing completion, you can often save money by passing on suggested upgrades from the builder and installing things yourself.
Realize that just because a home is brand new, it doesn't mean that it is immune from needing repairs. Be sure to get a home inspection before purchase so that issues are handled and also negotiate a home warranty. Then, about 10 or 11 months after purchase it's worth it to pay for an inspection and get anything else repaired before the warranty expires.