Abstract
Nowadays, relevant design challenges include the need to use sustainable materials that allow designing products with a lower environmental impact. The construction sector is currently undergoing a slow but continuous change towards the use of sustainable materials. One of the most generalized methods for assessing sustainability is the Life Cycle Assessment (LCA), which aims to analyze and compare product alternatives to minimize the environmental impact of a product or a process. In this work, the LCA method has been applied to a mobile tiny house prototype built with sustainable materials, such as hemp bricks or wood. The ISO 14040 and the EN 15804 standards were followed. The life stages calculated are hemp cultivation and processing, production of the hemp brick, construction of the tiny house and transportation. The results show that the most significant impact comes from the production of titanium sheet metal, wood, bricks, and the transport of raw materials. The results suggest that hemp bricks are a sustainable alternative, but they need to be combined with the right manufacturing and transportation processes. This research offers insights into how to introduce sustainability in the building sector through early design decisions, such as the selection of materials.