The building society now accounts for 17% of all mutual lending in the UK.
Its underlying profit before tax was £84.6m, up 12% from the previous year’s profit of £75.3m.
David Stewart, chief executive of Coventry, said: “I am pleased to report that Coventry Building Society has maintained its track record of strong results, and believe that the society’s success in serving the interests of its members whilst remaining financially strong, secure and growing, stands comparison with that of any large bank or building society.”
He added that Coventry was the only top ten building society to have increased its savings, increased mortgage lending, remained profitable and grown its assets in each of the five years since the start of the credit crisis.
Stewart said: “We could not have achieved this leading performance without the support of the intermediary sector.
“Equally our support for intermediaries has not changed shown by the importance we continue to the pledges we launched in 2007 including our promise not to dual price and to provide 48 hours notice of product withdrawal.
“I believe our partnership with intermediaries will strengthen further as we work hard to continue the successes of the last five years.”