In Chiang Mai, Thailand, there has been an increasing demand for lighting design strategies that enhance tangible and intangible values of cultural heritage destinations. This research explores the role of lighting design in enhancing the cultural experiences and promoting the cultural tourism of Lanna Buddhist architecture. Suan Dok Temple was selected as a case study due to its historical, social, and cultural significance. This research uses qualitative approaches such as field surveys, photographic documentation, and interviews with temple authorities, cultural heritage experts and tourism professionals for the formulation of initial users’ requirements and lighting design criteria and concept. Data analysis suggested that cultural heritage and conservation, cultural tourism management, and operation and maintenance are important factors in heritage lighting design for cultural tourism. Realistic rendering images of lighting design scenes for the temple’s chedis and vihara are generated based on the concept of luminance layers representing the Buddhist cosmology idea. In addition, lighting operation and installation details are developed and presented to stakeholders for discussion on contextual and operational appropriateness. Finally, the study discusses critical lighting design factors for the development of lighting design solutions for heritage sites, particularly Lanna Buddhist temples, contributing to sustainable cultural tourism.