The company initially focused on the Irish market but later expanded to the UK, Middle East and mainland Europe.

By the early 1950s, McInerney had entered the Dublin market and was building high volume suburban homes on green field sites including 190 houses for Dublin Corporation in Ballyfermot and 340 houses in Milltown.

By the mid-1950s, it had expanded into the Greater London market and was soon constructing local authority housing across the South of England.

[11] The group had an operating profit of €58m in 2007 completing 2,414 units across Ireland, the UK and Spain and was a constituent of the ISEQ 20.

It was then involved in a notable court case McInerney Homes Ltd v Cos Acts 1990 following its examinership in 2010, however the British arm of the company was sold off to a competitor while the Irish operation was ultimately wound-up.