RIVERSAILS: Upper Serangoon Crescent, D19 Hougang, Condominium, Developer: BENEFIT INVESTMENTS PTE LTD, 99-year lease from 07/12/2011, completed in 2016, 24,696 sqm land, 920 units, 1BR-4BR, Buyer Profile: Singaporean 82%, PR 14.9%, Foreigner 3.1%, Avg sale price: $1,437 psf, Rental Yield: 3.4%.