One in eight potholes reported to the council were not repaired over the last 12 months.

A Wandsworth Council report showed 6,561 holes were filled in, despite 7,498 being reported.

A breakdown of each ward shows 63 pot holes remain untended in Graveney and 57 in Bedford.

Southfields was riddled with the most holes, with 702 recorded within the past year.

Wandsworth Council defended their repair record, pointing to harsh winters having a detrimental effect on the condition of the 200 miles of roads across the borough.

The opposition Labour party argued the council is neglecting to fulfil basic duties.

Councillor Rex Osborn, the group's leader, said: "The state of Wandsworth's roads is appalling - and we now know that there are almost 1000 reported potholes which have not been filled.

"Filling potholes is one of the council's most basic statutory duties, a duty which it is failing to fulfil.

"Not only is the poor state of the roads causing damage to residents' vehicles, but it's also putting cyclists' lives in danger.

"The council needs to buck up its act and get on top of this backlog urgently."

The council is committing £6.2m to repair roads this year, including £2m on footway and carriageway repairs.

A spokesman for the council said: "In a 12 month period, during which the harsh winter had a particularly detrimental effect on the 200 miles of roads we look after, our teams worked hard to repair a huge number of potholes - equating to about 26 per working day.

"There will inevitably be more reports than repairs in a given period because problems cannot be fixed instantly - so we have a rolling repair process in place."