The proposals, overseen by business recovery specialist BTG, cover Ardmore Group Holdings, Ardmore Group, Byrne Properties, Celebration Homes, Paddington Construction, Systemhaven and Byrne Estates (Kensal Green).

If approved by creditors, the CVAs will allow the companies to repay debts under an agreed timetable rather than being placed in administration alongside the main contracting businesses which collapsed in June.

The latest move follows chairman Cormac Byrne’s decision to pursue an appeal against the High Court’s landmark Building Liability Order judgment over a £14.9m adjudication award for Crest Nicholson against Ardmore Construction Ltd, now in administration.

This makes the wider group companies liable to pay the sum and opens up a claims route from other developers.

In June, the Court of Appeal granted Ardmore permission to appeal and agreed to fast-track the case because of its wider importance to the construction industry.

Ardmore argues the appeal will clarify when Building Liability Orders can be made and the extent to which liabilities for historic projects can be imposed across company groups.

A spokesperson for Ardmore said: “Our focus is now on preserving value in the wider Group, protecting the continuing businesses where possible, and pursuing the appeal against a judgment which we believe raises important questions for the wider industry.”