More than two-thirds of a £4.2bn government homes fund remains unspent more than six years after its launch.
The Housing Infrastructure Fund was created in 2017 in an attempt to jump-start housebuilding by providing local authorities with grant funding for key infrastructure such as transport and utilities connections.
However, just £1.3bn of the pot, or about 31%, has been spent to date.
The government also confirmed that work had begun on fewer than one in 10 of the promised homes, and that it had downgraded its delivery target through the fund from 340,000 to 270,000 homes, after a number of schemes withdrew or had funding pulled.