Ballymore profits more than doubled to £67.1m in the year to the end of March 2015 as the company benefitted from the sale of its Millharbour, E14, joint venture to Galliard.
The £50m windfall lifted profits despite a 42% drop in turnover to £148m during the year.
The company exchanged on the sale of 884 homes in the 12 months to the end of March with a total value of £407m and these sales are expected to complete by the end of 2016.