From the New York Times article:

“In 2015, she began working with Kevan Hoertdoerfer, a Charleston architect with a history of designing provocative contemporary structures, to transform a cinder-block house across from Hampton Park into a modernist gem.

Then, the following year, she bought a 1950s ranch house on a double lot just down the street for $415,000, with plans to demolish it, subdivide the lot and build a replacement with Mr. Hoertdoerfer’s help.

The initial idea was that the second house would be a spec home to sell. But as work progressed, Ms. Baldwin turned the plan on its head, deciding to keep the second house and put the first one up for sale.”