The research is focused on finding ways to develop safe environment design using virtual worlds like Second Life and Metavers and identifying the best opportunities for this. The novelty of the study lies in a wide representative survey of experienced participants in the process of designing a secure environment using virtual tools and obtaining their generalized Delphi assessment of the prospects and optimal capabilities of this process. The survey involved 228 participants from 31 countries. The participants formulated a set of possibilities and patterns of possible development and then gave them an assessment. The results of the study showed that designers and planners tend to distrust the possibilities of modeling and predicting the state of the urban safe environment in virtual spaces and tend to perceive it as a means of creating projects, revealing the imagination and talent of the designer and a space for communication and co-design with the expert community and communities. It was revealed that they see the use of augmented reality for the presentation of real objects in the virtual world and information about objects in the real world as the most promising direction of development.