BRUSSELS, Belgium, 2015-7-28 — /Travel PR News/ — Carlson Rezidor, one of the most dynamic hotel groups worldwide, announces its first  residence in Istanbul: the Radisson Blu Residence Istanbul Batisehir featuring 171 units is scheduled to open in Q2 2016. The signing further strengthens the  position of Radisson Blu as the largest upper upscale brand… Read the full press release