The article is written to analyze preservation and development of historical centres in towns of Europe and Nordic countries, as well to prevent previous mistakes in development of city planning. In the article there is analysed development planning in historical centres of foreign cities and activities to preserve and develop them, for example, Old Rauma in Finland, Kristiansfeld in Denmark, Drobaka in Norway, Zamosc in Poland etc. There are analysed positive experience implemented and list of activities done and planned to do by Kuldiga town municipality, what in a long term will promote understanding of inhabitants and owners of buildings , as well as improves possibilities to renovate historical buildings themselves under supervision of professionals. There is an analyse of experience what could be introduced to old-town of Kuldiga according to owned and attracted resources, like foundation of restoration centre and work out research on old-town inventory. The analysis of negative experience of old-town of Tallin is done, where old-town construction regulation is not properly detailed. The architects with a different understanding about preservation of historical environment have possibilities to creative expression to design buildings what disharmonize with historical constructions. There is an analysis of Drobaka experience about visualization of old-town regulations not only for constructors and designers but also for inhabitants to understand requirements of building renovation and reconstruction cases required from municipality and monument protection institutions.