The actualization of affordable housing remains a challenge. This challenge is exacerbated by the increasing societal demand for the incorporation of sustainability principles into such housing types to improve levels of occupant health and well-being whilst avouching the desired levels of affordability. Innovative technologies and practices have been described as beneficial to the effectuation of sustainable affordable housing. However, knowledge concerning the deployment of innovative technologies and practices in sustainable affordable housing (sustainable, innovative, affordable housing—SIAH) delivery remains nascent. Consequently, there is a lack of a common ontology among stakeholders concerning how to realize SIAH. This study aims to contribute toward the development of this body of knowledge through the establishment of the critical success factors (CSFs) for effective SIAH implementation. To achieve this objective, a systematic review and bibliometric analysis focusing on a juxtaposition of sustainable, innovative and affordable housing concepts was carried out based on the relevant literature. This led to the identification and clustering of CSFs for these housing concepts at individual levels and as a collective (SIAH). The findings of the study consisted of the establishment of four distinct yet interrelated facets through which SIAH can be achieved holistically, namely, housing design, house element, housing production method and housing technology. A total of 127 CSFs were found to be aligned to these facets, subsequently clustered, and conclusively used for the development of a SIAH CSF framework. The most frequently occurring CSFs with predominant interconnections were the utilization of energy-efficient systems/fittings, tenure security, a comfortable and healthy indoor environment, affordable housing price in relation to income and using water-efficient systems/fittings CSFs, and establishing the emergent SIAH CSF framework. The framework in this study is useful in the documentation of SIAH features for construction projects and further studies into SIAH CSFs.

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The emergence of a plethora of innovative construction methods, materials and technologies in the construction industry has been projected to enhance the effective delivery of sustainable affordable housing. However, a lack of empirical evidence buttressing an extensive analysis of the effect of internal and external influencers on adopting these innovations within the affordable housing context in developing countries persists.This study examines the nexus between company and project characteristics as internal influencers, and challenges as external influencers, on the extent of use of sustainabilityoriented innovations (SOIs), on affordable housing projects. Variables emanating from an extensive literature review were presented in a causal model detailing sustainable, innovative, and affordable housing (SIAH). The model and the inherent causality between the constructs were validated through a survey administered on a population of registered South African home developers. The results of structural equation modelling posit a minimal positive impact of internal influencers and moderate negative effects of external challenges on the extent of use of SOIs by home developers. Also, results highlighted the negative mediating impact of challenges on the relationship between internal influences and the extent of use of SOI in affordable housing projects. The study concludes that the

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