On Tat Estate (Chinese: 安達邨) and On Tai Estate (Chinese: 安泰邨) are Hong Kong public housing estates located on Anderson Road, Tai Sheung Tok, Sau Mau Ping, Kwun Tong District and the parts of Development at Anderson Road.

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.