The Ballysillan streets take their names from the townland which in Irish is: Baile na Saileán meaning: ‘townland of the willow groves/sally groves’. “A minute of the Housing (Clearance and Redevelopment) Committee of 7th December was tabled proposing that three of the new thoroughfares at the Ballysillan Estate be named Ballysillan Avenue, Benview Avenue and Benview Parade” Minutes, Improvement Committe, 17th January 1967.