As global imperatives for sustainability intensify, understanding the intricate connections between geometric design and the dual goals of energy efficiency and environmental responsibility becomes paramount. This research aims to systematically investigate the influence of architectural geometry on the creation of positive buildings, encompassing both positive energy and positive environmental impact structures. The study employs a multidisciplinary approach, integrating architectural design principles with advanced simulation techniques to scrutinize the impact of various geometric configurations on the performance of buildings. Specifically, the research focuses on the positive energy aspects, exploring how geometry can optimize energy generation and consumption. Simultaneously, it delves into the environmental impact, examining how geometric considerations contribute to resource efficiency, reduced ecological footprint, and overall environmental harmony. Through a comprehensive analysis of geometric parameters between three different forms, this research seeks to identify optimal design strategies that promote positive energy outcomes and environmental sustainability concurrently. To achieve this objective, a comprehensive inquiry into three parametric forms of dome space structure, flat roof, and barrel was conducted. The foundational stages involved architectural modelling and energy analysis through the utilization of Rhino software, complemented by the integration of Grasshopper, Honeybee, and Ladybug plugins. A meticulous environmental impact analysis was subsequently performed by One Click LCA. The findings of this investigation are anticipated to provide valuable insights for architects, designers, and policymakers involved in the creation of buildings that not only minimize their environmental impact but actively contribute to a positive, sustainable future. This study contributes to the evolving discourse on positive buildings by bridging the gap between architectural design and environmental performance, fostering a holistic approach towards the development of structures that align with global sustainability goals, and uncovering the nuanced relationships between geometry and environmental impact. It seeks to provide actionable insights for architects, designers, and policymakers involved in sustainable building practices. The findings contribute to the development of design guidelines that prioritize environmentally responsible choices, fostering a paradigm shift towards the creation of buildings that actively promote ecological balance. Ultimately, this study contributes to the ongoing dialogue on sustainable architecture, offering practical considerations for mitigating environmental impact through thoughtful geometric design.