Bonarahma, R. and Hutajulu, S. 2026. Development of an AI-Based Prototype for Integrating Design and Cost Estimation in the Early Stages of Residential Construction: A Design Thinking Approach and Adoption Validation. Journal Research of Social Science, Economics, and Management. 6, 1 (Aug. 2026), 160–171. DOI:https://doi.org/10.59141/jrssem.v6i1.1634.