vThe study investigatedthe planning of administrative space for secondary education delivery in Delta State. It adopted the descriptive survey design. The population of the study comprised all the 891 public and private secondary schools in the state. The stratified random sampling technique was used to select a sample size of 225 schools (public-115, private-110). Document analysis through the use of checklist was used to obtain the data for the study. The data generated were analysed using percentage. The study revealed that administrative space was planned in both public and private secondary schools. However, the study showed that the level at which the planning was carried out was higher in public schools than in privately owned schools. The studytherefore recommended among other things that private school owners should always employ the services of educational planners when planning schools. This is to ensure compliance with recommended planning standards in all areas.