Victorian builders could lose $450m daily under Melbourne stage 4 Covid-19 lockdown

Work levels from big construction sites to trade businesses set to be pummelled amid predictions new curbs will knock wind out of' state

Victorian builders say they will take a hit to revenue totalling up to $456m a day from sweeping new restrictions on construction in the state, forcing some companies to close their doors entirely.

Under tough restrictions announced on Monday that are designed to slow the spread of the state's coronavirus outbreak, the number of workers on large building sites such as apartment complexes and office towers is to be reduced to a quarter of the normal number.