Towering Office Building in the Capital Give your business a presence near the seat of Government in our 343 Preston offices in Ottawa. Work alongside high-tech companies in this prominent office tower in the ‘Little Italy’ district of the Canadian capital. Be inspired to do your best work in spacious, high-spec workspaces with large windows providing panoramic views and abundant natural light. Grab a bite to eat in the many restaurants nearby or clear your head at beautiful Dow’s Lake a short walk away.