Green retrofitting technology (GRT), which has revolutionized the construction industry of several nations has been poorly implemented in Nigeria. This research investigates issues on the adoption of GRT within the Nigeria built environment. The specific objectives are to examine the factors affecting the adoption of GRT; and find out the reasons for the adoption of GRT. Questionnaires were administered electronically to 100 construction industry professionals in Ekiti State Nigeria, selected via purposive sampling technique. Data were analysed using descriptive statistics tools. The study reveals nine factors affecting adoption of GRT in the research area and shed light that improved building performance is the topmost reason for the adoption of GRT. The study concluded that although there are several factors affecting adoption of GRF, nonetheless, limited knowledge of the technology is topmost among them. It implies that the adoption of the technology could also be limited in scope in the Nigerian construction industry. It is recommended that construction professionals and customers should be holistic in their reasons for the adoption of GRF. This can be done by attaching equal importance to all the reasons for the adoption of GRF.