2023 HERNDON DISTRICT OVERLAY (HDO) Map depicts in pink nearly the same contributing properties as the Town of Herndon 1987 Historic Architectural Survey albeit removing some properties; and nearly the same noncontributing properties, shown in blue. However, the 2023 Overlay Map incorporates additional noncontributing properties, such as the 2005-built Fortnightly Square townhomes on the other side of the W&OD Trail, the thick diagonal green bar.