an architectural competition board of a project of modern theatre hall and oncert hall and performance art center, sketchbook style, layout of studies on the page, mixture of black and white hand drawing with water color sketches in variety of different scales, floor plans, views, sections, schematic concept studies, perspectives, 3D renders, texts, section drawing of concert hall and texts in a neatly composed sheet with white space and balance. award wining design, masterclass, fantastic architecture, production process, public architecture, opera players on the stage, modernist postmodern fuctionalist architecture, Leyendecker elegance, by sedat hakkı eldem Design a bold and original municipal building for Kadıköy, Istanbul, that seamlessly integrates the area's rich historical heritage with modern and sustainable architecture. The building should reflect Kadıköy’s history while also embodying the spirit of the present day. The architecture should be innovative and striking, with a focus on modern materials and energy-efficient, eco-friendly features. The structure should blend tradition and contemporary design elements, such as stone textures, contemporary facades, and transparent, open spaces. The overall design should prioritize sustainability through natural lighting, green roofs, and energy-efficient systems, while creating an iconic, functional space for civic engagement.