The Housing Society has received an overwhelming response to its sale of a final batch of 838 subsidised flats. The sale was 35 times oversubscribed, with more than 30,000 families applying to buy one of the so-called sandwich-class homes that are built for middle-income families who earn too much to qualify for public housing, but too little to afford private property. A spokesman for the society said: 'The market response has exceeded our expectation and we believe all the flats will be sold out.' Applications closed yesterday, but the society expects to receive some more by post in the next two days. A ballot will be held on April 22. The society is selling 181 flats at The Pinnacle in Tseung Kwan O, 161 at Highland Park in Kwai Chung and 32 at The Cascades in Ho Man Tin. These add to the 464 flats at The Pinnacle released for sale earlier. Homes at The Pinnacle range in size from 681 sq ft to 826 sq ft and have two or three bedrooms. They cost about HK$3,000 per sq ft, with prices ranging from HK$1.58 million to HK$2.64 million. The flats at Highland Park range in size from 727 sq ft to 816 sq ft and cost around HK$3,100 per sq ft. Those at The Cascades are between 681 sq ft and 688 sq ft in size and cost HK$3,700 per sq ft. The Housing Society said their prices were guided by recent secondary market transactions of the sandwich-class flats and those of private property in the area. The society then offers a discount, which is 23 per cent for the latest flats put up for sale. Concern group Caring Hong Kong will stage a protest on April 18 to press the government to resume building flats under the sandwich-class housing scheme and the Home Ownership Scheme (HOS). 'Flat prices are crazily high,' former legislator Dr Kwok Ka-ki, the group's convenor, said. 'And after the government sells its remaining 4,000 HOS flats and the sandwich-class flats, those people - especially young people who are not qualified to apply for public rental housing but are not rich enough to buy private flats - will have nowhere to live.'