Shares of Chinese property developers rallied on Thursday after a report that China was considering a plan for local governments across the country to buy millions of unsold homes from distressed companies to ease a protracted property crisis.

Hong Kong's Hang Seng Mainland Properties Index closed up 4.9% to the highest since November 24. The sub-index has gained around 30% since mid-April, when the market started speculation that more supportive measures would be rolled out to stabilize the ailing sector after months of disappointing home sales.

Defaulted private developer Fantasia and KWG Group jumped 63% and 40%, respectively, while state-backed Sino-Ocean Group surged 46%.

Hong Kong's markets were closed on Wednesday for a public holiday. They have been catching up to gains in mainland property shares since the previous day.

China's CSI 300 Real Estate index firmed 3.5% on Thursday, following a 2.2% rise on Wednesday.

Bloomberg News said on Wednesday the State Council was gathering feedback on the preliminary plan from various provinces and government bodies after a meeting of the ruling Communist Party leaders in late April called for efforts to clear mounting housing inventory.

Local state-owned enterprises would be asked to help purchase unsold homes from distressed developers at steep discounts using loans provided by state banks, according to the report, which added that many of these homes would be converted into affordable housing.

China's housing ministry, central bank, the National Financial Regulatory Administration and the Ministry of Natural Resources scheduled a news briefing Friday afternoon about the supporting policies to ensure housing delivery, according to a notice on Thursday.

Bloomberg News said in a separate report on Thursday that the State Council plans to hold a meeting with key officials from the housing ministry, financial regulators, local governments and state banks on Friday morning to discuss the property market, including a proposal to clear excess housing inventory.

Reuters could not independently verify the reports.

China's property sector slipped into a debt crisis in mid-2021. Since 2022, waves of policy measures have failed to turn around the sector, which represents about a fifth of the economy and remains a major drag on consumer spending and confidence.

Over the past years, some local governments already announced plans to buy unfinished or unsold homes from developers and turn them into social housing, but the scale has been small.

Authorities also in recent weeks ramped up policies intended to clear the stock of unsold housing. Large cities such as Beijing and Shenzhen have eased home purchase restrictions, with some allowing homebuyers to "swap" to a new home from an old one.

"We believe this could be a game changer in the sense that property sales may at least stabilize rather than turn worse," JPMorgan said in a report, referring to the reported plan in consideration.

The bank, however, added it is skeptical about whether the scale would be large enough to trigger a market recovery unless the funding would come from the central government.

Nomura said if local governments could acquire a meaningful volume of unsold homes from developers, it would help resolve the inventory issue and channel fund flows to the credit-trapped private companies, said Nomura.

This, in turn, would support construction activities and alleviate the sector's downward spiral, it said.

However, some have been concerned about the lack of housing demand in smaller cities, with worries surfacing that such a plan would further weigh on the financial health of local governments.

Local governments are already more than $9 trillion in debt and pose a major risk to China's economy and financial stability.

"It would only work in higher-tier cities but not lower-tier ones; where would the buyers come from?" said an analyst from another Asian bank, who declined to be named as he was not authorized to speak to the media. "Telling local governments in those cities to buy inventory would just burn their balance sheet."