The architecture and the yellow-painted building style are very characteristic of Central Europe, likely Poland. The diamond-shaped yellow and white priority road sign is a strong indicator of Polish traffic regulations. The text "OPTI LAND" on the blue sign also points towards a Polish urban environment. I suspect this is a city in Poland, possibly Wrocław or a similar historic city. I am fairly confident in this assessment.

then: forward

The signage, including the pedestrian crossing signs and the blue mandatory direction signs, confirms a Polish urban setting. The "NFZ" sign on the building refers to the National Health Fund of Poland. The modernist high-rise building and the general layout are very typical of Polish residential districts. I am quite certain this is in Poland, likely in a city like Wrocław or Poznań.

then: guess