Urban Space Attributes, User Satisfaction and Sustainable Public Space Performance: Comparing Heritage-Oriented and Contemporary Commercial Spaces in Malaysia

Urban public spaces contribute to sustainable urban development by supporting social interaction, cultural identity, pedestrian experience, environmental comfort and commercial vitality. However, limited comparative evidence explains how user satisfaction differs between public spaces shaped by contrasting spatial identities. This study compares Melaka Jonker Street (MJS), a heritage-oriented commercial public space, and Bukit Bintang Kuala Lumpur (BBKL), a contemporary commercial public space, to examine how selected urban space attributes shape user satisfaction and sustainability interpretation. A quantitative comparative survey involving 542 respondents was analysed using descriptive statistics, Cronbach’s alpha, the Mann–Whitney U test, the Relative Importance Index (RII), comparative gap analysis, the User Satisfaction Balance Score (USBS) and exploratory factor analysis (EFA). The findings show that, within the shared attributes examined, MJS recorded stronger satisfaction patterns than BBKL, with the largest satisfaction gaps observed in accessibility, light sculpture, waterscape lighting and green elements. Satisfaction in MJS was mainly shaped by heritage identity, historical buildings, street art walls, water elements and accessibility, reflecting a cultural–environmental sustainability pattern. In contrast, satisfaction in BBKL was more closely associated with activity intensity, media architecture and contemporary visual experience, reflecting a socio-economic-commercial sustainability pattern. These results provide context-specific evidence that sustainable public space performance is shaped by the relationship between urban space attributes, spatial identity and everyday user experience. The findings contribute to urban design and public space research by integrating user satisfaction with sustainability interpretation and by providing context-sensitive planning and design implications for heritage-oriented and contemporary commercial public spaces in Malaysia.