This study employs large-scale-text-to-image (LLI) models to analyze building typologies in relation to environmental contexts. Here, types delineate deep compositions of places that intertwine socio-economic histories with physical structures. Rather than mere representations or models, types encapsulate various facets of a site into a specific term, acting as strategic interfaces bridging architectural design and policy-making. Moving forward, can typological thinking assist in understanding generative-AI workflows from an architectural perspective? Moreover, can one redesign types as instrumental interfaces once again linking design to their environmental contexts?The investigation examines the compositional characteristics of AI-generated images of buildings across various cities.A synthetic dataset of 150,000 images was segmented into individual building segments, enabling a statistical analysisof compositional features across 5,600 cities. The paper introduces how LLI models portray diverse local typologies anddifferentiates these using computational metrics for big-data analysis. It explores the LLI’s potential to assess the carbonfootprint of places by analyzing materials, building parts, and construction methods within the generated images throughimage segmentation.Despite only a real-world alignment of approximately 70 percent in the synthetic data, such databases can augmentexisting building datasets. Synthetic datasets are particularly useful in hard-to-access contexts and in past or projectivesettings. They allow for the precise staging of specific content, such as building typologies or perspectives. Computationalarticulation of types reveals specific attributes that transcend linear classification regimes, aiding here in assessing places’carbon footprints through multilayered linkages. The analysis indicates that embodied carbon in places does not align withgeographical carbon classifications, offering more differentiated resolutions. Furthermore, the embodied carbon,composed of multiple materials, is not visually apparent,suggesting a need for local and project-specific adaptations.