ABSTRACT
Globally the demand for housing is far more than supply, resulting to 100 million+ been homeless and with one billion people living in inadequate homes. In addition, recent world crisis such as high rural urban migration, natural disasters like the Syria-Turkey earth quake, flooding, conflicts such as the ongoing Russia-Urkraine war, COVID-19 protocols of social distance and isolation, etc. exacerbates the housing deficit. Whilst the current approach to housing especially in developing countries concentrates on convention unsustainable approach to affordable housing delivery. With the few sustainable housing development attempts been far luxurious beyond average Ghanaian affordability. This research seeks to contribute to address housing deficit problems using frugal Innovation (FI) as a game changer to sustainable affordable housing (SAH) through a bibliometrics and a systematic review study. With regards to financial, resource-constrained, significant cost reductions over existing options and sustainable solutions, one idea currently gaining traction is frugal innovation (FI). It is more affordable than the conventional approach to development and can convert constraint into opportunity in a sustainable manner, as well as have a direct link to sustainable affordable development. Search for this study was on all disciplines with publications linked to frugal innovation and sustainable affordable housing limited to only online articles, conference publications, books, and other materials published in English on Scopus, science direct, and Google Scholar. The finding revealed, FI is a combination of all similar innovations, under one umbrella to serve the underserved bottom-of-the-pyramid (BOP) market, making it superior to other forms of innovation. This study will contribute significantly to improving the policy direction of stakeholders in an attempt to reduce the housing deficit in Ghana and other developing countries globally. In addition, it will contribute to the UN-SDGs and UN-Habitat policymakers on the sustainable cities 2030 agenda © This open access article is published under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license. https://creativecommons.org/licenses/by-nc-nd/4.0/