Abstract. This study assessed and compared the delivery of Facilities Management (FM) services in public and private high rise residential buildings in Lagos, Nigeria. While some facilities or services may not be available in some public estates, the efficiency of the available ones is inadequate in comparison with the adequacy and efficiency of services provided in private estates. The objectives set for the study include identification of services that are provided in the case studies, service delivery method, and an assessment of the residents' satisfaction of the services. This study adopted questionnaire survey for collection of data. 127 questionnaires were distributed to the residents of the case studies and 93 were returned. Three of which were discarded for incompleteness, thus 90 were analysed. The study found that most but not all of the facilities services expected in high rise buildings are available in the case studies and the services are outsourced under a standard Service Level Agreement. The service delivery in private high rise residential building is better than the public residential high rise buildings as revealed by the study. The study recommends improved standardization of services, customized services and meeting customer's expectation for improved service delivery.