sentences:  Willow Glen has no officially defined boundaries, and area residents have been known to debate where the neighborhood ends.The Willow Glen Neighborhood Association's by-laws reserve voting memberships to individuals and businesses within boundaries of the Association defined by the San Jose 2009 Greenprint - Willow Glen Planning Area Map, and within 1/2 mile of Greenprint boundary.Highway 280 is almost universally accepted as the community's northern border.