According to former Names Committee secretary Nancy Diettrich “The castles were chosen to recognize the different ethnic groups in the area.”[3] It was originally established in 1971 through Edmonton City Council's adoption of the Castle Downs Outline Plan,[4] and then extended northward in 1983 through the adoption of the Caste Downs Extension Area Structure Plan.

[4][5] Located in northwest Edmonton, the Castle Downs area is bounded by 127 Street to the west and Anthony Henday Drive (Highway 216) to the north.

[7] The Lake District (Edmonton North) area is located beyond 97 Street to the east,[8] while the Kensington neighbourhood is beyond 137 Avenue to the south.

[6] The Palisades area is located across 127 Street to the west,[9] while the future Goodridge Corners neighbourhood is beyond Anthony Henday Drive to the northwest.

[10][11] Sturgeon County is located beyond Goodridge Corners to the northwest and 1.2 km (0.75 mi) beyond Anthony Henday Drive to the north.