Krakow has a permanent population of over 800,000. The number of inhabitants is increasing year on year due to the influx of working people and students, who often settle in Krakow permanently. This is leading to increased demand and consequently more flats and houses being put into use by developers. The increasing environmental awareness of the population and the resulting financial benefits—particularly evident in 2022—have meant that the classic, or rather ill-considered, building industry is gradually being replaced by better, environmentally friendly solutions. In the first part of the article, the authors focus on smart buildings, and in the second part, they combine them with financial changes in the real estate market. The aim of the publication is to draw conclusions from the changes in the real estate market in Krakow that have taken place in the last decade and to assess these activities from the point of view of environmental solutions. The data are mainly derived from official statistics and trade reports published by research institutes, marketing agencies operating in the real estate sector in Poland, as well as specialist portals and publications dealing with real estate market analysis. The publication analyzes changes in the real estate market in terms of changes in unit prices, number of transactions, and availability. The analysis covers landed property, the primary and secondary premises market, developed property, and tenement buildings.