SINGAPORE - The Housing and Development Board (HDB) has won prizes for 33 building projects and one of its architects in this year's Building and Construction Authority Awards.

These include 23 Green Mark Awards for creating a sustainable built environment, the most such awards won by a single agency.

Of these, three HDB office complexes, HDB Hub at Toa Payoh, commercial building Connection One and the HDB Centre of Building Research all won the Platinum Green Mark Award, the highest possible such accolade.

Four housing projects won the Universal Design Mark Award for user-friendly and accessible design. Three others won Construction Productivity Awards. Two of these - Casa Clementi and Punggol Breeze - were also among the six Build-To-Order HDB projects which won Construction Excellence Awards.

"With more than 28,000 households receiving the keys to their homes this year, HDB will maintain a stringent quality assessment framework to ensure that home buyers receive quality homes with minimal defects," said HDB in a statement on Wednesday.

For his work on environmentally-friendly and sustainable HDB projects such as Treelodge @ Punggol and My Waterway @ Punggol, HDB's director of environmental sustainability research, Mr Alan Tan Hock Seng, was named Green Architect of the Year. The awards ceremony will be held at Resorts World Sentosa on Thursday.