We present a review of the concept of design quality in healthcare. The aim of review was to define the concept of design quality in order to be able to operationalize the concept for future research. In recent years, several studies have shown that the design of the physical environment affects the patient's health and wellbeing and how different models of care can be implemented, for example, person-centered care. Design quality in architecture has long been the subject for theoretical discussion. From the Roman architect Vitruvius to contemporary design quality following tangible and intangible properties such as utility, durability and beauty. In dictionaries, the general design quality is described as a standard for something when it is compared to other things; how good or bad something is to be of good / bad / the highest quality. Design quality can be described as a measure of a high standard, a plan or an intention of design in the way that it will work and look like. However, until recently, the meaning of design quality in healthcare has been vague and merely described as a subjective experience of the environment. In order to be useful the concept need to be connected to quality indicators of healthcare. In this presentation, we discuss the concept of design quality and its relation to evidence-based design i.e. design decisions based on the best available results from credible research and evaluation of completed building projects.