Developers have sold around 500 of the 620 units at the Lotus Riverside project, including in the collapsed block, at an average of 14,300 yuan per sq m. Since May, some prices have even risen to 18,800 yuan.

"When the property market is booming, profits-driven developers skimp on work procedures and use shoddy products," said Shi.

Corruption at a local level is also an issue and the Central Commission for Discipline Inspection of the Communist Party of China revealed last month around 100 high-ranking government officials had been sacked or charged this year, with most cases relating to land transactions and property development.

Wang Wei, deputy director of transport for the Xiangxi Tujia-Miao autonomous prefecture in Hunan province, was sentenced to 15 years in prison in January after 64 people died when a bridge under construction collapsed. It was discovered he had taken bribes and had failed to conduct his duty.

In February, Kang Huijun, former deputy director of Shanghai's Pudong district, was jailed for life for receiving 5.9 million yuan in bribes to approve land sales and accumulated unjustified assets worth 12 million yuan, while Jiang Yong, former director of Chongqing urban planning bureau, was given a suspended death sentence for taking almost 18 million yuan in bribes.

"When government officials take sides with the developer, there will always be a quality problem," said Du Yueping, a lawyer who has dealt with property litigation for 20 years. "We used to have signs at construction sites that read: 'Quality is a priority and life is no joking matter'. You don't see them any more."

The Shanghai municipal government is investigating Shanghai Meidu Real Estate Development, a former State-owned firm that went private, after it was discovered several government officials have illegal stakes in the firm.

Documents from the city's industry and commerce office show Meidu was founded in 1995, with the State-owned Shanghai Xinmin Real Estate holding a 20-percent share and the Meilong township government holding 80.

But after several stages of restructuring, it went private in 2001, when 24 shareholders bought up the township's 80 percent. Most of them, however, work for the government.

"It is forbidden by the law but it does happen," explained Shi.

With its connections, Meidu was able to buy the land for the Lotus Riverside project at a cut-rate price, paying just 604 yuan per sq m, despite similar land nearby costing 1,929 yuan, reported Southern Weekend.

Prior to 2003, when land sales started to be decided through auctions, deals were approved by local authorities and were a large part of its fiscal income, said lawyer Du. Rules to ban civil servants from any involvement in business followed repeated reports of corruption.

However, most land in Minhang district, one of the largest in Shanghai, was sold before 2003, while subsequent development has seen it transformed from a sparse rural area to a densely populated suburb.

The firm has apologized for the June 27 collapse and is working on a compensation package for residents of the destroyed block. But the incident has led many locals to question whether they are living on solid foundations.

"We're getting less calls these days," said Liu Lili, an reality agent for Wanyuan Property, "and those who do say they want properties about five years old. In the past, it was always 'the newer, the better'."

More cooperation among government departments is vital to ensure quality during the building boom, said Ouyang of Shanghai Project Management, who explained that quality supervision officials at district level cover supervisor and construction firms, while industry and commerce bureaus and land bureaus cover developers.

"In an accident, construction and quality supervision departments will lead the investigation and the construction and supervision firms are more likely to be blamed," he said. "Developers normally take no responsibility but it is sometimes they who do not care about quality.

"Departments should work more closely to coordinate on quality and ban developers from buying more land if it is proved they were responsible for an accident. Only then will developers learn their lesson."

Du added that an independent third party should be put in charge of quality supervision to plug the loophole in the system.

"If the supervision team and developers are bound by money, the supervisors can hardly be objective," he said. "I have not seen one developer stopped from selling its properties because a supervision team said no to construction. The supervisors are more likely to do their duty if they are not connected with the developer."

He suggested quality control professionals should be chosen at random from a national database to reduce the chances of corruption.

"Before work starts, the developer should put money into an account that is taken charge of by a quality supervision institution," he added. "That way, it will be the institution rather than the developer that decides whether or not the supervisors should be paid."

The Ministry of Housing and Urban-Rural Development failed to respond to questions when contacted by China Daily. However, last week, it announced plans to launch a full safety check of all construction projects under way across China.

(China Daily July 8, 2009)