Both Bono and Enya are hoping to get the builders in - if the D·n Laoghaire-Rathdown planners give the go-ahead. Both have applied for permission to work on their rather splendid south county Dublin homes. Bono and Ali - or plain old Mr and Mrs P Hewson as they are in the planning notice - want to build a three-storey extension to Temple Hill, their already rather spacious digs on Vico Road in Dalkey. Enya - or Ms Eithne Brennan as she is known to the planners - wants to do something far more exotic. She has put in for a detached garden room to the rear garden of Ayesha Castle, her dramatic Victorian house in Killiney.