From the Houzz archive · Project reference
Basement "Addition" (crawl space conversion)

A crawl-space conversion studies how to add family living space without sacrificing the home's lake views. Rather than expanding upward or across the site, the design develops a basement within the existing footprint and connects it with new stairs.
Source: Team LINEA Houzz archive. Original image and project-team credits are retained in the linked collection.
The complete historical image collection and its individual image credits remain on Houzz.
Explore the full collection on Houzz (opens a new tab)