The City of Paris is one of the eight French departments that constitute the
Ile-de-France (Paris Metropolitan Region). Although most of the major
tourist attractions are located in central Paris, the cost of hotel
accommodation is significantly more expensive than in the other seven Ile de
France departments.
Fortunately, Paris has an excellent Metro and commuter rail system, so it
is quite feasible to find a hotel on the outskirts and commute into downtown
Paris.