This study presents a forensic architectural analysis of the Miskhal Mosque in Kuttichira, Calicut (c.1300–1340 CE), one of the earliest multi-storeyed mosques on the Malabar Coast and a significant example of Kerala’s vernacular Islamic architectural tradition. The research investigates how indigenous timber-laterite construction systems were adapted to accommodate Islamic spatial requirements within Kerala’s tropical monsoon environment. Using architectural forensic methodologies, the study examines the mosque’s spatial organisation, structural logic, and material behaviour. The analysis demonstrates how local master carpenters ( thachans ) translated Islamic liturgical requirements into a vertically organised architectural system supported by composite timber and laterite construction. The findings reveal a climate-responsive structural strategy based on material complementarity, passive ventilation, and moisture regulation. By foregrounding architectural forensics, the study contributes to a deeper understanding of vernacular Islamic architectural systems that evolved through maritime cultural exchange along the Malabar Coast.