Residents of new flats in Choa Chu Kang have complained that their walkways and lift landings are becoming cluttered with litter, bulky refuse and unwanted furniture.
Nobody has owned up to throwing away the likes of old sofas, computer desks and mattresses in at least three blocks in Choa Chu Kang Avenue 7 and Keat Hong Link - all of which have been occupied this year.
However, it is believed that careless neighbours and workmen could be responsible.
According to Chinese daily Lianhe Wanbao, rubbish chutes from the second to eighth floors at Block 817A, Keat Hong Link, were jammed full of litter on Monday, causing a foul smell and attracting flies.
The Housing Board also found that refuse-handling equipment attached to the central chute on the ground floor had malfunctioned.
A spokesman said: "This was caused by the improper disposal of bulky refuse and renovation debris into the chute, which jammed the chute between floors."
Works were carried out over the weekend to clear the accumulating refuse and the equipment was working again on Monday.
When The Straits Times visited the blocks yesterday, the situation had improved slightly.
However, some bulky litter could still be spotted at lift landings and stairwells.
Residents said the problem has been inconveniencing them for several months, even though the town council had regularly been sending cleaners to deal with the mess.
One resident, who wanted to be known only as Mr Lee and moved in to Block 817A in Keat Hong Link last month, said he was unable to open the common chute near his floor's lift landing yesterday morning because it was stuffed with rubbish.
The 37-year-old engineer had to take his rubbish bags to the first floor to dispose of them.
He added that he has seen paint cans, carton boxes and even wash basins left behind at lift landings on the ground floor.
"A lot of the rubbish accumulates," he said.
"It blocks the pavements and can be quite dangerous for young kids."
Choa Chu Kang Town Council has put up notices warning of $500 fines for anyone caught dumping rubbish illegally in common areas and refuse chutes.
Resident and warehouse manager Gerry Ng, 30, called for stricter enforcement, adding: "It's very inconsiderate to people staying here.
"It's a public place but people are just throwing their things away."
The HDB added that residents who want to throw away bulky items should approach their renovation contractor or town council.