Shui Chuen O Estate Phase 2A is a public rental housing (PRH) development located in Sha Tin. Phase 2A consists of a 26-story residential block, providing 545 units for public housing tenants.

The estate features a three-story commercial center, offering essential retail shops, restaurants, and community services. Additionally, a public transport interchange is integrated into the development, serving the entire Sha Tin Area 52. A 73-meter-long pedestrian footbridge and a 50-meter-high lift tower connect the estate to Shui Chuen Au Street, ensuring convenient access for residents.

The architectural design incorporates eco-friendly elements, including green spaces and energy-efficient building materials. The estate is strategically positioned between Ma On Shan Country Park and Lion Rock Country Park, providing residents with scenic views and access to nature. The development also includes weather-protected walkways, footbridges, escalators, and access ramps, ensuring seamless mobility throughout the estate.