A concierge is an employee of a multi-tenant building, such as a hotel or apartment building, who receives guests. The concept has been applied more generally to other hospitality settings and to personal concierges who manage the errands of private clients.
In 19th-century and early 20th-century apartment buildings, particularly in Paris, the concierge was known as a "Suisse", as the post was often filled by Swiss people. He often had a small apartment on the ground floor, called la loge, and was able to monitor all comings and goings. However, such settings are now extremely rare; most concierges in small or middle-sized buildings have been replaced by the part-time services of door-staff. Some larger apartment buildings or groups of buildings retain the use of concierges. The concierge may, for instance, keep the mail of absented dwellers, be entrusted with the apartment keys to deal with emergencies when residents are absent, provide information to residents and guests, provide access control, enforce rules, and act as a go-between for residents and management when management is not on-site.