Exploring Tidal Architecture: Amphibious Building Systems for Coastal Communities in Flux

Abstract

This research employed a mixed-methods approach to investigate amphibious building systems for coastal communities experiencing tidal fluctuations. The study selected three coastal sites through purposive sampling based on tidal range, flooding frequency, and community vulnerability to sea-level variations. Data collection involved structured surveys administered to 120 coastal residents to assess their flooding experiences, existing adaptive strategies, and housing requirements. The researcher conducted systematic observations using a standardized assessment tool to evaluate current building typologies, foundation systems, and flood-resilient features across 80 coastal dwellings. Semi-structured interviews with 25 residents explored their lived experiences with tidal changes, seasonal flooding patterns, and perceptions of amphibious housing solutions. Additionally, the study engaged 8 local boat builders, 6 traditional fishermen, and 4 marine engineers through focus group discussions to understand indigenous water-based construction knowledge and buoyancy principles. Hydrological data collection involved measuring tidal levels, flood depths, and water velocity at selected sites over a six-month period. The researcher analyzed precedent amphibious structures globally through case study documentation to identify successful design strategies and technical mechanisms. Three amphibious building prototypes were developed incorporating floating foundations, vertical guidance systems, and flexible utility connections, then presented to communities for feedback through participatory design charrettes. Quantitative environmental and structural data underwent technical analysis, while qualitative data were thematically coded to extract community needs and design preferences for tidal-responsive architecture.