Coastline Changes from Melting Ice Sheets

I read with great interest the article by Josefino Comiso and Claire Parkinson about melting in the Arctic. However, as often occurs in papers dealing with climate change, I found the information not very practical. I’m particularly worried about changes in the sea level at middle latitudes. I own a house a couple of meters above the highest tide line, on the seashore in northwestern Spain. In the area there are several granite docks and piers that date from the mid-18th century. It seems that in 250 years, sea level has not changed appreciably. However, recent climate-change research has raised a lot of doubts and fears in people who own oceanfront property. I would appreciate it if Comiso, Parkinson, and other people working in the field could be more specific in their models and predictions. It would be very helpful in protecting our investments.