The Hong Kong government has recovered around 5,000 subsidised rental units which had allegedly been “misused” by “rich tenants” amid a crack down on pubic housing abuse. Rosanna Law, director for housing, told Commercial Radio on Saturday that by taking back the units, the government had saved around HK$5 billion. “It currently costs around HK$1 million to build one public housing unit, therefore HK$5 billion could build 5,000 units. And it also takes years to build new estates,” Law said in Cantonese. “However, these surrendered units only take a few months to refurnish, and then we can begi…