Prattrick

I'm not a geologist, but the north end of Plum Island and the surrounding area...where these homes are likely situated...have a very low elevation, and the island itself seems to be composed mostly of sand and low-elevation marshes. The north end of the Island is part of the Merrimack River delta. There are no outcroppings of stone cliffs or firm bedrock in the immediate area of these homes...at least none that I know about. From year to year the low-elevation shoreline on the north end of the island changes, with high rates of erosion in some areas and substantial deposits of sand in others. This has been going on for many eons, as the surrounding sand dunes attest to. If you build a large home on the ever-changing shores of these shifting sands, your 'short-term' thinking is, most certainly, dictating your thought process.

Non-Bozo

My guess is that it was built long ago when the surf was no where near the house. Its a shame to lose the place. The previous comment was obviously made by "someguy" hiding behind the anonymity of the internet and doesn't reflect the attitude of the majority of people with any feeling at all.

someguy

If you build it there what else would you expect?