Architecture for hot-humid climates: deep overhangs for rain/sun, cross-ventilation (prevailing wind orientation), outdoor rooms (lanai, veranda), louvered windows/shutters, raised floors, steep roofs for drainage, natural materials (bamboo, teak, palm, coral stone). Famous: Geoffrey Bawa (Sri Lanka), Kerry Hill, WOHA Architects. Modern tropical: combines passive cooling with contemporary aesthetics. $200-$500/sf.