My thesis explores the historical BDD chawl buildings in Worli, originally constructed to accommodate Mumbai's 19th-century migrant workers. These 160 sq. ft. tenements fostered a unique 'Chawl Culture,' characterized by communal living and shared spaces. As these buildings face redevelopment, my research proposes architectural considerations to preserve their community essence, ensuring that rehabilitation efforts retain the identity, lifestyle, and social dynamics intrinsic to these communities.