Abstract
This study evaluates the effectiveness of Interlocking Stabilized Soil Blocks (ISSBs) in enhancing indoor environmental comfort in selected hospitality buildings. The research examines thermal comfort, acoustic quality, and overall user satisfaction by comparing buildings constructed with ISSBs and those built with conventional walling materials. Data were collected through structured questionnaires, interviews with facility managers, and physical environmental observations, including indoor temperature and noise level measurements. Descriptive and inferential statistical analyses were used to assess differences in comfort levels, while thematic content analysis was applied to qualitative data. Findings indicate that ISSB buildings recorded higher comfort ratings, demonstrating improved thermal regulation and acoustic performance compared to conventional structures. Observational measurements aligned with users’ perceptions, confirming that ISSBs contribute to more stable indoor temperatures and reduced noise transmission. The study concludes that walling material selection significantly influences indoor environmental quality and that ISSBs provide a viable and sustainable solution for enhancing comfort performance in hospitality buildings.