They are also calling for the closure of the retention pond, which they say is too close to their homes and poses a constant threat, reported Utusan Malaysia.

Lawyer Aminahtul Mardiah Nor, representing 28 affected homeowners, said a letter of demand would be sent soon to claim compensation for property damage caused by the latest breach.

“The RM1.6 million is an initial estimate covering structural damage, destroyed furniture, vehicle repairs, and cleaning costs,” she said.

“If there’s no satisfactory response within 14 days, we will file a lawsuit at the Shah Alam High Court.”

She added that the list of defendants, including the developer and state government, was still being finalised.

The latest breach occurred on April 23 following heavy rain. Water flooded 35 homes, with levels reaching about 0.2 feet, she said.

A similar collapse last December affected 200 homes, while the first reported breach occurred over a decade ago.

The Selangor government has said a long-term solution is expected before the northeast monsoon later this year.

Resident Zikri Zaini, 40, said flood damage to his home had cost him RM170,000.

“Every time it rains, we’re on edge. My floor cracked, my furniture was destroyed, and I lost important documents,” he said.

Another resident, Khairul Nizam Jamil, 43, said legal action was their last resort after 10 years of flood risk.

“We’re traumatised. We’re not here to blame anyone – we just want a safe and livable environment,” he said.