 The neighborhood lies mostly east of Stephenson Boulevard and includes Petersville Road, Lispenard Avenue, High Street, Sherman Street, Halligan Street, Dearborn Street, Lyons Place, Hertford Street, Pembroke Street, Grant Street, Merton Street, Jefferson Street, and Madison Street.Along with the Homestead Park neighborhood, Stephenson Park is served by the East End Civic Association.Bordered by Boston Post Road and Palmer avenue, the Sun Haven neighborhood is located at the eastern edge New Rochelle along the Mamaroneck Town border.