On Tat Estate and On Tai Estate

The site of the estates was formerly a vegetated hillslope below Anderson Road. Under the "Development at Anderson Road" (DAR) project, the site was reformed under the supervision of the Civil Engineering and Development Department (CEDD) to provide approximately 20 hectares of useable land. In addition to site formation, the DAR project included the construction of supporting infrastructure, including roads, drains, and engineered slopes. The buildable land was allocated for public housing development as well as supporting government, institutional, and community facilities.[3] The DAR project, which cost HK$3.4 billion, was formally completed in December 2016.[4]

The public housing component of the project, originally intended to provide 16,100 units for 48,000 people, was completed from 2016 to 2018. The housing blocks comprise On Tat and On Tai estates, which are located at either end of the dumbbell-shaped DAR site. They are linked by On Sau Road, which runs the length of the site and connects to New Clear Water Bay Road in the north and Po Lam Road in the south.