*Percentile Ranking - Developer/Contractor may be subjected to higher sampling under the 3-Tier CONQUAS scheme for their future private housing projects, as long as they have private housing projects with CONQUAS score below the bottom 10th percentile in the immediate past 3 years.

Year Project Developer Project Developer Contractor CONQUAS Score Percentile Rank 2019 Private Housing AverageQM Rating
2017 The Luxurie Keppel Land Ltd Keppel Land Ltd Tiong Seng Contractors (Pte) Ltd 92.8 48% 91.5 Excellent
2017 Haus @ Serangoon Garden City Developments Ltd (CDL) Sparkland Holdings Pte Ltd Tiong Seng Contractors (Pte) Ltd 94.4 50% Merit
2017 Eco Sanctuary SP Setia International (S) Pte Ltd Sp Setia International (S) Pte Ltd Tiong Seng Contractors (Pte) Ltd 93.8 67%