McCarthy Stone is a developer and manager of retirement communities in the United Kingdom. It was acquired by Lone Star Funds in 2021.

John McCarthy and Bill Stone became partners in 1961, and in 1977 they built their first retirement housing development in Hampshire. Subsequently they ceased other building work to concentrate on developing specialist housing for elderly people. By 1982, when the company was floated on the Unlisted Securities Market, the company had completed 15 retirement housing developments and was selling around 200 units a year. Growth was rapid after the flotation, and by 1984 the company operated on a national basis with annual sales approaching 1,000 units. The business was exceptionally profitable due to a rapidly ageing population. Annual sales reached 2,601 units in 1988.

The company was delisted from the London Stock Exchange in 2006 following a successful takeover bid of over £1 billion from a consortium including David and Simon Reuben and Sir Tom Hunter. The company was refinanced in 2013 under new ownership and re-listed on the London Stock Exchange in 2015.

In 2020, the directors accepted a takeover bid from American private equity investment firm Lone Star Funds. Shareholders approved the takeover offer worth £647m.

In 2021, the company announced a new investment partnership with Macquarie and John Laing to finance its new rental portfolio.

The company is the only UK developer, of any size or type, to win the full five-star rating in the Home Builders Federation’s customer satisfaction awards every year the survey has been run.