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. Accounting documents are provided for business travelers. The deposit is refunded upon check-out, after the apartment is checked. Smoking is prohibited in the apartment; smoking is allowed in special places near the building. Only guests over the age of 18 are accommodated. Professional cleaning before check-in is charged separately. The cost is RUB 1300.00.