Assessing the adequacy and sustainability performance of multi-family residential buildings in Anambra State, Nigeria

The proliferation of multi-family residential building in Anambra State of Nigeria due to increasing demand without recourse to performance has brought concerns about the adequacy and sustainability of this housing type. This study therefore, assessed the adequacy and sustainability performance of multi-family residential buildings in urban areas of Anambra State. The study sampled the opinions of 384 households living in multi-family residential buildings through a questionnaire survey. We conducted data analysis based on 214 responses that were useful for analysis. The study found that internal and building component variables and supporting neighborhood variables were adequate, but the surrounding environment variables were inadequate based on Mean Score Index. However, based on Sustainability Performance Index, the occupants perceived social sustainability performance of the buildings as satisfactory, while environmental and economic sustainability performance were perceived as fairly satisfactory. The Pearson correlation coefficient result further established that adequacy of internal and building component variables was significantly and positively related to the residents’ perceived social sustainability performance. Adequacy of the surrounding environmental variables was also found to be positively and significantly related to the residents’ perceived environmental sustainability performance, whereas adequacy of supporting neighborhood facilities was found to be negatively and significantly related to the residents’ perceived economic sustainability performance. This suggested that investors and owners of multi-family residential buildings should direct more efforts towards improving the surrounding environment to supplements other facilities and increase the economic benefit of the renters or occupiers with increasing economic sustainability performance in terms of value for money