The average rent for a one-bedroom apartment in Centro, particularly in major cities like Madrid or Barcelona, typically ranges from €1,000 to €1,500 per month. In central Madrid, for instance, you might find a one-bedroom apartment in an older building for around €1,200, while newer or recently renovated units could cost upwards of €1,600. In Barcelona’s Gothic Quarter, one-bedrooms generally sit around €1,300, reflecting not just the location but also proximity to landmarks, public transport, and local amenities. Prices can vary significantly based on the specific neighborhood, with some areas commanding higher rents due to their tourist appeal or local demand. Other factors influencing rent include the condition of the apartment, whether it includes utilities, and overall supply in the market.