Legal & General's (L&G) non-life profits grew 85% to £37m for 2001, compared to £20m in 2000.
The booming general insurance business contributed to an overall profit growth of 10% for the group to a total of £751m.
Gross written premiums in general insurance business increased to £285m, compared to £259m in 2000.
L&G's household account, which represents more than three quarters of general insurance permiums, produced an operating profit of £15m, compared to £5m in 2000. The increase was due to fewer bad weather claims, the company said.
The company's mortgage indemnity business made an operating profit of £14m, compared to £21m in 2000, with a third coming from the release of reserves put aside for mortgage indemnity contracts taken out before 1993.
Other personal lines business made an operating profit of £8m, compared to a £6m loss in 2000.