Adaptis is a decision-support platform for whole life cycle carbon reduction planning of existing and new construction buildings.We increase ROI and lower costs for building owners and consultants working on decarbonization, circularity, and long-term resilience planning of their building projects and real estate portfolios.Adaptis generates design solutions while simultaneously evaluating them across various performance metrics from early planning stages of a building adaptation, renovation to construction and maintenance planning. Using innovative and patent-pending methodologies, we optimize operational and embodied carbon, salvage value estimation, deconstruction planning, circular design integration and cost-benefit analysis. We:1) Get involved in the early planning stages of a project to assist building owners with decarbonization decision-making;2) Assist design and consulting teams with achieving decarbonization targets throughout design stages;3) Validate decarbonization goals during construction and occupancy; and 4) Track and optimize maintenance, capital planning and future adaptation during the project life cycle. Adaptis's analysis results in higher-quality design options when compared to a conventional consulting team. It accomplishes this while achieving a 20X increase in speed, significantly reducing the costs associated with assessing and implementing decarbonization projects. Moreover, it enhances return on investment by over 30% compared to traditional design, analysis, and decision-making procedures.