This residential development was part of the South Penrith Release Area. Although the name Peachtree was adopted as a preliminary choice for the new residential development, Penrith City Council opted for the name Glenmore Park as a more attractive name even if not historically accurate.

Glenmore Park takes its name from the single-storey cottage named Glenmore built by Henry Cox and his wife, formerly Frances Mackenzie, in 1825. The house and old sandstone stables are now part of the Glenmore Country Club.

The Glenmore Park estate was officially opened in February 1990 and is built on part of what was Sir John Jamison’s property Regent Villa built in 1823. This house was situated near the present main entry to the suburb near the roundabout on the hill above.