Feng Shui of HDB Clementi Cascadia and the location of the development’s Precinct Pavilion 1. One nice benefit of HDB Clementi Cascadia is that the Precinct Pavilion is thoughtfully tucked away at one corner of the development. 2. This is different from some newer projects where the pavilion is placed right in the middle of the estate. 3. In those situations, any wakes or gatherings can be more noticeable, and noise from large groups of residents may feel more disruptive. 4.