ELITE RESIDENTIAL COMPLEX "DIADEMA" CONVENIENTLY LOCATED AT 23, KONSTANTINOVSKY PR-T, KRESTOVSKY ISLAND, SAINT-PETERSBURG Elite 7 storey residential house "Diadema", conveniently located at the Krestovsky island, at the bank of Srednya Nevka, 23, Konstantinovsky prospect, Saint-Petersburg, bricks-monolithic concrete building, 73 apartments, built in 2012, amazing glassed green atrium with landscape design, private SPA, gym and cafe for the residents, input and output ventilation system with filters, water filtration system, wood double glazing, modern engineering and telecommunication systems, fire alarm, high-speed Internet, satellite TV, child playground at the secured territory, 24/7 security, video monitoring, access control, concierge service, perfect infrastructure, 10 min walk from “Krestovsky island” metro station.