Manual compliance review for historical districts is a bottleneck, consuming weeks of consultant time and risking costly redesigns late in the approval cycle. This workflow automates the subjective analysis of aesthetics and materials by combining computer vision to compare designs against approved precedent images and LLMs to parse and interpret nuanced textual guidelines. The operational upside comes from reducing review cycles from months to days, cutting consultant fees, and providing a defensible, traceable audit trail for review boards, which accelerates project starts and improves developer certainty.




