When project manager Anders Koh and his wife Yu-Qing, a research nurse, moved into their new four-room Woodlands home in June, going green was one of their priorities.
Paint had to be lead-free, and the appliances energy efficient.
While his wife looked out for kitchen appliances that fit the bill, Mr Koh sought energy-saving bulbs and air-conditioners.
"Going green can help both the environment and my bills in the long run," said the 29-year-old.
Now the North West Community Development Council hopes more of its residents will emulate Mr Koh's attitude with a new initiative launched last Saturday.
Called Green Homes@North West, the three-year programme aims to encourage around 12,000 home owners in the district to use energy-saving devices.
Those who volunteer to go through an eco-audit will get a "Green Home" certificate plus a chance to win vouchers in a lucky draw, offering a total of $5,000 in prizes, in March.
Five criteria need to be met before being labelled a "Green Home", including setting aside a recyclable collection area.
Households must use instant water heaters instead of water- storage ones, air-conditioners and refrigerators with "four-tick" energy efficiency ratings, and washing machines which are rated "three ticks" in water efficiency.