_____________________________________________________________________________________________________ *Corresponding author: Email: Enelche.psu@ksu.edu.ng; Archives of Current Research International 9(1): 1-12, 2017; Article no.ACRI.35194 ISSN: 2454-7077 An Assessment of Sustainable Energy-efficient Strategies for Retrofitted Building Development in Abuja, Nigeria V. C. Nnodu 1 , M. E. Obiegbu 2 and P. S. U. Eneche 3* 1 Department of Environmental Management, Nnamdi Azikiwe University, Awka, Nigeria. 2 Department of Building, Nnamdi Azikiwe University, Awka, Nigeria. 3 Department of Geography and Environmental Studies, Kogi State University, Anyigba, Nigeria. Authors’ contributions This work was carried out in collaboration between all authors. Author VCN prepared the objectives and first draft of the study. Author MEO was responsible for data survey and statistical analysis. Author PSUE managed the literature and the final draft. All authors read and approved the final manuscript. Article Information DOI: 10.9734/ACRI/2017/35194 Editor(s): (1) Wang Mingyu, School of Metallurgy and Environment, Central South University, China. Reviewers: (1) Ghada Ahmed Ragheb, Pharos University, Egypt. (2) Ngakan Ketut Acwin Dwijendra, University of Udayana, Indonesia. Complete Peer review History: http://www.sciencedomain.org/review-history/20433 Received 30 th June 2017 Accepted 3 rd August 2017 Published 9 th August 2017 ABSTRACT Building and construction designs are expected to be smart; characterized with less negative environmental impacts and are to be more or less economically sustainable. In the face of changing climate and thermal discomfort among urban residents, developing energy-efficient structures is imminent. The brunt of this study therefore was to identify sustainable energy-efficient strategies for the retrofitting of buildings in Gwarinpa District of Abuja. This study was however delimited to the development initiatives for energy-efficient buildings, in particular, residential and commercial buildings such as hotels and recreational centres. The research made use of 300 structured questionnaires and a couple of interview sessions with 36 officials from building, planning and energy saving companies and parastatals, while simple tables, Likert scale and Chi- square test were used to analyse the data generated. The result revealed that majority of the officials interviewed in the study area have HND/MED/BSc as their highest qualification (50%), with Original Research Article