Regarding your question about what is a reasonable and fair price:
Find a REALTOR(R) you trust to give a Comparable Market Analysis for any home, new or used, that you may be interested in purchasing. Buyers Representation is free to the buyer and paid for by the seller. Ultimately, what is affordable and well within your financial means is the most reasonable answer here.
Happy home-hunting from Malcuit Duo!
To Search Homes For Sale: http://www.AblazeAboutAlaska.com
Builders usually have a set price for their standard new construction homes. Upgrades will cost you more, and can extend time frame to close if changes are made along the way. If you are buying an existing new construction home, you may have more flexibility when making an offer, depending on how long the home has been on the market.
Are you looking to buy? Maybe I can help.
Most of the home builders that are still building are not to flexible.
If you are trying to build your own design then it really starts piling on cost because they need to run plans thur their drafter so the crews can do their jobs.
However if you wanting a new construction home of their design depending on the builder and who you use as your Realtor or if you decide to negotiate yourself (not recommended) there may be some room to negotiate for your best buy.