Most of the park consists of playing fields, kite flying areas, and trees.
[1] It has often lent its name to an electoral ward of Brent, including namesake tube station, and typically most of North Wembley.
The park was for centuries part of Sheepcote Farm in the manor of Harrow, and named after its lord, Northwick.
It passed to affluent Harrow School and then Middlesex County Council acquired its original 192 acres of land from that institution.
The amount of public open space has since diminished with: For some time until 1939 the latter hosted an active golf course.