THE Premier Portfolio, which has more than 50 executive-style apartments for letting in Dublin 2 and 4, yesterday launched its new service at a reception in Stephen's Hall Hotel on Leeson Street. The units range from a luxury one-bedroom apartment on Hatch Street at £60 per night to a three-bedroom mews house off Fitzwilliam Square for £175 per night. The price includes daily housekeeping, hot food delivery, fax and direct dial telephone service and free car-parking. Premier Hotels also launched serviced office accommodation and a new conference room in Stephen's Hall.