What we know is that the Mansion over the Hilltop can also be located on the earthquake proof structure. The costs of preservation from one generation to another generation is not overwhelming, as many were overwhelmed with the equivalent and equivalance. Preserved.Not really. Our "new" house was moved onto this site and a new foundation after the old (1904) house was removed. Some of the drywall had to be fixed but it cost me over 100K less doing it this way than buying a similar house 2 blocks away.