The sublime of Islamic architecture is most legible in small-scale structures, where texture, shade, shadow, and spatial proportion become primary design qualities. Non-religious building types, residential courtyards, civic squares, bathhouses, markets, and public spaces are the most socially embedded carriers of Islamic design principles, yet their architectural lineage has remained largely unread. Southern Spain offers an exceptional laboratory for tracing this DNA, where centuries of urban development have gradually reduced rich design principles to superficial features, their deeper meanings lost in translation. This paper quantifies the identified features and motifs of Islamic Andalusian architecture, conceptualised here as “Chromosomes”, a diagnostic ontology capable of being expressed, suppressed, mutated, or transmitted across generations of buildings, independent of political or religious change. Focusing on commercial street facades across three intact historic cities, Córdoba, Granada, and Seville, the paper analyses hybrid facades ranging from the 14th century to the contemporary, examining where references to Islamic heritage are explicit, conspicuous, or residual. Through this chromosomal framework, the paper lays the groundwork for a diagnostic toolkit capable of revealing which design principles have persisted, which have mutated, and which have been reduced to ornamental accessories. By bridging qualitative cultural heritage analysis with quantitative spatial methods, it reintroduces Islamic architecture as a core genetic influence rather than a stylistic imitation. The outcomes will benefit architects, urban designers, and heritage practitioners engaged in questions of identity, continuity, and the future of culturally embedded urban fabric. The study aims to recover an architectural lineage that has always been present throughout history in Spain and the Islamic world but has remained unread.
Husam Akoud is an architect practicing in the USA. He graduated from the University of Khartoum with a Bachelor of Architecture and earned his M. Arch. degree from New Jersey Institute of Technology. Mr. Akoud has a long career in architecture spanning Africa, Asia, and the US. He combined professional practice with academic acumen, taught at UDC in Washington DC and at the University of Khartoum.
Dr. Elbanhawy is Senior Lecturer in Architecture at the University of Portsmouth. Her research spans urban resilience, mobility-justice, coastal heritage, and Global South urbanism, with sustained engagement across Cairo, Alexandria, and the UK. She has contributed to research circles across five HE institutions, bridging scholarships between the Global North and South. She leads the UDUM Lab (Urban Diagnostics, Urgencies and Mobilities Lab), supervising doctoral researchers across spatial justice, heritage, mobility, and inclusive design. She is the PI on WASILA grant application, examining mobility equity across Cairo, as well as on the AHRC-project application COHERE on coastal living heritage resilience in both Spheres.