KPMG is handling both businesses.
Lowry Homes was established in 1997 and part of Isle of Man-registered Jackson Holdings. Its website claims a group turnover of £70m but according to thebusinessdesk.com the last set of accounts filed at Companies House showed that in 2008 the company made a pre-tax loss of £1.4m on turnover of £17.8m.
Brian Green and Paul Flint from the Manchester office of accountancy firm KPMG were appointed as joint administrators on 16 November.
Irwins, based in Horsforth, near Leeds, reported turnover of £24.3m in the year to 31 March 2009.
Mark Firmin and Howard Smith of KPMG were appointed joint administrators on 23 November.