Rivervale Delta Sales Brochure: Site Plan and Floor Plans rivervale-delta.pdf Lease Commencement Date: Year 2016   1. Feng Shui of HDB Rivervale Delta @ Sengkang and Flying Star Feng Shui of 5 bedroom type:-   2. N1 facing stacks = 252 with S1 facing stacks = 236 & 248. N1 has the auspicious double 8s at it's frontage. Good if the frontage has a water position. Good if the master bedroom is located at NE sector. As it has good auspicious star combinat