Georgian Cherry Grove embraces the 1729 kitchen of the Thomas log cabin that burned in 1772. Richard Thomas rebuilt Cherry Grove in 1773 as his own home, and it reflects the wealth of one of the county's greatest landowners. The home also enjoys a fine "prospect." Wrote historian Roger Brooke Farquhar: "The beauty and desirability of the site of this fine house causes one to marvel that the pioneer settler in the wilderness was able to make such a wise choice for his habitation. The house sits (on Parr's Ridge), the rain from one side of the roof flowing into the Potomac and from the other side into the Patuxent, although at this point the two rivers are twenty miles apart." Cherry Grove was restored by Henry and Kathy Lieberman.

Earliest remnant of a Quaker home, the 1729 fireplace of Cherry Grove survived a 1772 fire that consumed the log cabin of John and Elizabeth Snowden Thomas. They built the cabin, near Ashton, a year after Quaker pioneers James and Deborah Snowden (Elizabeth's sister) settled at Charley Forrest, now demolished. In all of Sandy Spring, only the core unit of Greenwood predates the Cherry Grove kitchen. In 1773, a year after the fire, John and Elizabeth's son Richard built today's mansion at the site.