20 condo projects with dual key units include Skywaters Residences, Park Nova, 21 Anderson, Nassim Park Residences, Ardmore Park, Boulevard 88, 3 Orchard By-The-Park, Lloyd Sixtyfive, One Holland Village Residences, The Ritz-Carlton Residences Singapore Cairnhill, Nassim Mansion, Ardmore Three, 32 Gilstead, Eden Residences Capitol, The Avenir, 19 Nassim, Ardmore II, Hilltops, Grange Residences, and Perfect Ten.