RIVERWALK APARTMENTS: Upper Circular Road, D1/Singapore River, Apartment, 99 Yrs From 15/12/1980, Completed 1985, Land Size 6,894 sqm, 118 units, 1BR, 2BR, 3BR. Buyer Profile: Singaporean 63.5%, PR 20.9%, Foreigner 8.7%, Company 5.2%. Avg sale price: $1,630 psf, Rental Yield: 3.4%.