Post-Occupancy Evaluation of Modification of Residential Buildings for Effective and Efficient Mass Housing Delivery: Case Study of Owerri Urban, South-Eastern Nigeria

摘要

This study evaluates Aladinma and Prefab Housing Estates in Owerri Urban South-Eastern Nigeria which is experiencing population increase emanating from rapid urbanization. The aim is to improve future mass housing delivery in the area through feed-back information from the building consumers. The specific objectives were: to establish the nature and extent of post-occupancy modifications carried out in the estates; to determine the reasons for the modification and factors of satisfaction that are necessarily required to be considered in the programming and design of residential buildings in the study area for optimal performance; and to develop a mathematical method of conducting post-occupancy evaluation of modification of residential buildings.. The evaluation was based on a theoretical frame work of tripartite quality of architecture emphasized by Vitruvius; Utilitas (functionality or utility value: the social dimension), Firmitas (strength and rigidity: the technological dimension) and Venustas (beauty: the aesthetic dimension). The methodology involved field survey or case study. The field study involves six research approaches: archival retrieval; comparative mapping; physical trace identification; observations; questionnaires and interviews. The sample population of 405 building consumers and 409 housing units from the population of 1261 were used. The quantitative data were analyzed using SPSS software and the results were exported to Microsoft Excel to generate the graphs used.