Green groups attack plans for world's largest demolition of new buildings They've never been occupied and now they never will be. The fate of seven new blocks in a harbour-front Hunghom housing estate has been decided - they will be torn down for redevelopment into luxury flats that are likely to bring a windfall of nearly $6 billion for the developers. New World Development and Sun Hung Kai Properties announced yesterday that Hunghom Peninsula would be demolished - using environmentally friendly methods that they claim will see up to 95 per cent of the 190,000 tonnes of construction debris recycled. It will be the largest-ever demolition of new buildings in the world. Green groups and educators criticised the decision to tear down the blocks, saying it sent the wrong message to Hong Kong's young that profits were more important than environmental protection. The demolition, expected to take about 10 months, is likely to start next June. The redevelopment will then take another three years. Stewart Leung Chi-kin, executive director of New World Development, said the redevelopment would bring huge social and economic benefits to Hong Kong. Mr Leung said three options had been considered for the site - selling the flats as they are, extensive renovation or reconstruction. 'Redevelopment will help create more than 1,000 new job opportunities and raise government revenues from increased stamp duty,' Mr Leung said. He said it would be a 'massive waste' if the site of the estate - built as a Home Ownership Scheme project to help meet government housing supply targets, left vacant to stabilise property prices, then sold to developers - was not used to its full potential. 'In correcting the mismatch in land resources, we demonstrate to our next generation that if a mistake is made, one should have the courage to put it right,' he said. Kwan Chuk-fai, spokesman for NWS Holdings, a subsidiary of New World Development, said: 'It will be Hong Kong's biggest environmental project and a new learning process for our students.' Surveyors estimate the redeveloped flats could be sold at $8,000 to $9,000 per square foot, earning the developers a net profit of nearly $6 billion. Company sources said flats would range from 900 to 1,000 sq ft, with penthouses about 2,000 sq ft. Eric Tung Chi-ho, executive director of Sun Hung Kai Real Estate Agency, said hydraulic crushers, instead of jackhammers, would be used to reduce noise and dust from the demolition. Concrete would be crushed for reclamation, while other materials would be donated to charity or recycled. Mr Tung said only a few thousand tonnes of construction debris would be dumped into landfills. In compensation for that waste, money would be donated for green purposes. A concern group would also be set up to monitor the project. A spokeswoman for the Environment, Transport and Works Bureau said no waste management plan for the demolition had yet been received from the developers. She said the bureau was concerned about the demolition plan, including its environmental impact and construction waste. The government would consult the Advisory Council on the Environment on the demolition application, she said.