A renamed farm town's bathrooms are mostly recent
The settlement that became Avon, called Hampton, then White Lick, Smootsdell, and New Philadelphia before its current name stuck, remained agricultural well into the twentieth century and didn't incorporate as a town until 1995, so most Avon bathrooms reflect current or recent-past Hendricks County construction standards.
Older farmhouse bathrooms near the original township
The handful of older agricultural properties near Avon's original Washington Township settlement pattern, including land tied to the area's post-Civil-War farming history, still carry original farmhouse bathroom footprints that typically need a full layout and plumbing rework rather than a simple refresh.