This paper introduces a comprehensive Digital Building Logbook (DBL) framework aimed at addressing challenges in managing extensive data generated throughout the lifecycle of modern buildings. The framework establishes a fundamental structure, defining primary valuable data for DBLs to enhance the value of buildings or dwellings. It delineates essential data elements, guides stakeholder prioritization and engagement, and outlines effective storage methods. Additionally, we propose potential applications of the framework in real-world scenarios, extracted from the analysis of existing DBL implementations. This contribution significantly advances the AECO sectors by providing a structured approach to DBL development, offering early insights for future implementations.