1 million dollars!!! Said in my best Austin powers voice

Somewhere between the 25K yurt with not even running water to 2.5M luxury cabin with the 2 storey solid glass electric privacy window with custom geode crystal fireplace and geothermal radiant heated floors.

A plan is specifically designed to a budget and specifications. Not specifications and budget in search of an elusive but generic fairy slipper to fit.

You've asked a very fair question and I'd guess your best bet for this type of home is to contact a few local firms that build similar homes and see if they can give you the range. There's a lot of good advice here but it tends to be geared toward more custom homes. Are you familiar with unity homes in walpole? Beautiful houses that are assembled on site and some traditional NE designs.

A lot of people are going to tell you to contact local builders. However, if you are not even at that point a real easy thing to do is go on Zillow and look up new constructions in your area and see what they are selling for. This will give you a ballpark. They will most likely be tract homes, but if you want a basic colonial then the prices shouldn't be too far off.

Across the border (in MA) you'd be in the ~$250 to $300/SF range with modest finishes. Looking at other new construction is a good bet, add about $50/sf to the price that similar local spec houses sell for and you will be close on a simple custom build.

Keep in mind that there are at least two prices, combined, for building a new, free-standing house: 1) the price to build and finish the actual house, and; 2) the site development price, including running utilities, grading and paving, landscaping, well, septic, etc.

Then...there are also the permit fees required for obtaining design approval and building permit. There may be a final fee for occupancy permit.

The prices, combined, are the cost of a house.

In your case, there's a yet another price: the demolition and removal of the existing house, plus any remedial site work.