The Federal Ministry of Education in Nigeria insists as a matter of policy, That every approved school (Primary or Secondary) in the country must have a functional Parent Teacher‘s Association (PTA). With the advent of a numerous problems in the Education Sector, it became paramount for most of the schools to have PTAs to assist in sieving their problems. This study investigates the impact of Parents Teachers Association (PTA) on school development in Gwagwalada Area Council, FCT-Abuja. Descriptive survey research design was adopted for the study. The population of this study comprises of all the six (6) public primary and secondary schools in Gwagwalada Area Council, out of which a sample size consisting of eight (8) schools and eighty (80) teachers and parents/guardians were selected by stratified random sampling techniques. Structured questionnaires were used for data collection and data collected were analysed using frequency distribution and sample percentage counts. Findings revealed that raising funds for various school projects, provision of infrastructural and instructional facilities rehabilitating dilapidated public schools and maintenance facilities are the impact of PTA on school development. Recommendation proffer includes: PTA should continue to be involved in financing school Programmes, involving parents in organized school events, giving direct labour for execution of projects to the PTA.