The average rent for a one-bedroom apartment in Str. 155, 51147 Köln, Nordrhein-Westfalen, typically ranges from €800 to €1,200 per month, depending on factors such as location, amenities, and the condition of the building. For instance, newer developments or those with modern conveniences like in-unit laundry or nearby parking tend to be on the higher end of that spectrum. Older buildings or those that don’t offer as many features might fall closer to the €800 mark. Additionally, proximity to public transportation can significantly affect rental prices; apartments closer to tram and bus stops generally attract higher rents, while those situated further away might present more affordable options. It’s also worth noting that competition in the rental market can fluctuate, impacting average rents seasonally.