Abstract: In this article, the subject of the study is design, namely "environmental design". The author examines in detail the relevance of environmental design research and its importance in the modern world. The object of the study is specialized furniture for institutions, enterprises, shops. Special attention is paid to the fact that there is standard (serial) furniture and produced according to an individual project, or small-scale, it is the latter that the author classifies and explores. The author examines in detail such aspects of the topic as the influence of author's furniture on the design of the environment and the transformation of the room space. The technology of designing specialized furniture is also given. The author analyzed and systematized modern methods and technology of author's design of furniture for rooms of various purposes, except residential ones. The author provides specific design examples. In the research empirical methods were used, in particular: observation, generalization of experience, expert assessments, and theoretical ones: analysis, synthesis, comparison, generalization. Based on the results of the study, a general methodology was formed and proposed for the design of specialized furniture for enterprises, shops and institutions based on an individual design project. The main conclusion of this study is that the technology of designing this type of furniture has its own philosophy, specific features depending on the purpose, design features, equipment used, and the resulting products have their own unique and recognizable author's style. The author also identified the basic requirements for the design of this furniture. The novelty of the research lies in the proposed methodology and classification of specialized furniture. Previously, detailed studies of this subject area have not been conducted, unlike residential furniture and standard (serial) furniture for public spaces.