Utilization of Recycling and Upcycling in Interior Design: Reusing Waste Materials to Create Functional, Sustainable Spaces

Abstract

 The over-consumption of natural resources and the accumulation of human-made waste have created severe environmental pressures, while the construction and interior-fit-out sectors remain among the largest generators of solid waste and carbon emissions. This paper examines how recycling, reuse, and upcycling of waste materials can be used to produce functional, aesthetically coherent, and environmentally responsible interior spaces. Using a mixed-methods design, the study combines a survey of 72 respondents, structured interviews with three practising architects, and three case studies of reuse-driven projects, and translates the findings into an applied interior-design proposal a “Recycling Hub” community space on Karachi’s Sea View. The survey shows strong pro-recycling sentiment: 81% of respondents recycle, paper, glass and plastic are the materials most often reused, and a majority believe recycling or renovation can save substantial cost against demolition and rebuilding. Practitioner interviews reveal a persistent gap between attitude and habit, with architects still inclined toward demolition despite acknowledging the cost and environmental benefits of reuse. Read against the most recent 2025–2026 literature on circular design and construction-and-demolition (C&D) waste, the study argues that interior designers are pivotal actors in shifting the built environment from a linear “take–make–dispose” model to a circular one, and offers design considerations for specifying reclaimed, durable, and disassemblable materials.