<![CDATA[This study aims to examine the influence of co-creation behavior, service quality, and the implementation of Quality Function Deployment (QFD) on resident satisfaction at Dian Regency Apartment Surabaya. The research employed a quantitative approach with an explanatory design. Data were collected through questionnaires distributed to 175 residents and analyzed using Partial Least Squares (PLS). The findings reveal that co-creation behavior has a positive effect on service quality and the implementation of QFD. Furthermore, both service quality and QFD implementation significantly affect resident satisfaction. These results highlight that active resident involvement in co-creation enhances service quality and strengthens the effectiveness of QFD implementation, ultimately leading to higher satisfaction among apartment residents. The study contributes theoretically by integrating co-creation theory, SERVQUAL, and QFD in the context of vertical housing, while also providing practical implications for apartment management in developing resident-based service improvement strategies.]]>
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