In light of the importance of religious-tourism metropolises (RTMs), and the lack of research about the residential buildings sustainability (RBS) of these cities, the study aims to identify the dimensions of RBS that have received less attention in previous studies and examine both the level of RBS and the correlation between less noticeable sustainable dimensions in a case of the Region-one of Mashhad RTM, as a hub of tourism and pilgrimage. Both qualitative and quantitative methods were employed to analyze the research data. The research instrument used was the structured questionnaire, using a five-point Likert scale. The data collected through the relevant documents, experts’ consensus opinion, and respondents were analyzed respectively with NVivo software ver. 10, Delphi technique and SPSS software ver. 22.0. The findings of this paper highlight that despite numerous articles on the diverse aspects of RBS, the physical and environmental dimensions have been taken into account less than other aspects such as socio-cultural or economic sectors, and the studied residential buildings in physical and environmental dimensions scored at the medium and high levels of sustainability, respectively. Also, there is a strong positive linear correlation between the physical and environmental dimensions.

鉴于宗教旅游大都市（RTM）的重要性，以及对这些城市的住宅建筑可持续性（RBS）的研究不足，本研究旨在确定在先前研究中受到较少关注的RBS的维度，并进行考察RBS的水平，以及在作为旅游和朝圣中心的Mashhad RTM区域一的案例中，较不显着的可持续规模之间的相关性。定性和定量方法均用于分析研究数据。使用的研究工具是结构化问卷，使用五点李克特量表。通过相关文件，专家的共识性意见和受访者收集的数据分别使用NVivo软件版本2进行了分析。10，Delphi技术和SPSS软件版本。22.0。本文的研究结果突出表明，尽管有关RBS各个方面的文章很多，但与社会文化或经济部门以及研究的住宅建筑物在物理和环境方面相比，对物理和环境方面的考虑要少得多在可持续性的中级和高级水平分别得分。而且，物理尺寸和环境尺寸之间存在很强的线性正相关。