Deka Immobilien, a real estate investment company, agreed to acquire 402 Dunsmuir St. and 401 West Georgia St. towers from Canada Pension Plan Investment Board and Oxford Properties Group for CAD300m. The funds had initially aimed to get around CAD350m for the properties. But recently, it’s been hard to accurately price office buildings because few sizable properties have traded globally, one reason the sale of the Vancouver towers was so closely watched both in Canada and abroad.