The requirements for documents needed at check-in depend on the type of accommodation and the applicable regulations. For hotels and other accommodation facilities, a Russian passport, an international passport, or a driver’s license may be accepted. For apartments, serviced apartments, and other properties where check-in or contract conclusion is carried out according to the rules of a specific property, the required documents are determined by the property itself. Front desk is open 24/7. It is not possible to accommodate more than 8 guests. The restriction is set by the rules of the OKO Tower management company. Cigarette smoking is allowed outside, 15 meters from the entrance to the building. Smoking of electronic cigarettes, with the exception of IQOS and GLO tobacco heating systems, is allowed in a specially designated area inside the apartment. The arrival of underage guests is possible only if accompanied by parents or with a notarized power of attorney for an adult guest, issued in accordance with the established form. To check in, guests must present the original of one of the following valid documents: passport, driver's license, passport or military ID. In case of damage to the property, the amount is deducted from the deposit to compensate for the damage. The retention amount ranges from 20% to 100% of the value of the damaged item. The deposit will be refunded within 3 days from the moment of departure.