Most South Shore lots are already built on, and many of those buildings have reached the end of their useful life.
When a 1960s cabin is worth less than the dirt under it, a teardown and rebuild is usually the cleaner path. You get modern snow load engineering, current fire code, and a full TRPA recalculation of coverage, rather than chasing those things through an old structure that fights every upgrade. We have done this enough times to tell you within a site visit whether your lot pencils for a rebuild.
A rebuild keeps you on a footprint and a parcel you already own, with legacy coverage that a new lot may not carry. Where the old impervious surface is documented, we can often build back more than a raw lot would ever allow. That is the quiet advantage of rebuilding on the South Shore, and it is the first thing we check.