The average rental price for a one-bedroom apartment in Kerpen, Nordrhein-Westfalen, typically ranges from €600 to €800 per month, depending on the location and amenities. In more central areas, such as near the train station or shopping districts, prices can be on the higher end, with apartments often fetching around €750. Conversely, in quieter neighborhoods or those further from the city center, such as Brüggen or Sindorf, rents might be closer to the €600 mark. Factors like the overall condition of the apartment and whether utilities are included can also influence the rental price. For instance, a newly renovated one-bedroom with modern appliances might command a premium compared to a more dated unit in the same area.