The lender has also seen a 350% increase in completions.
The Mortgage Lender (TML) broke through the £2bn barrier for decisions in principle on residential and buy-to-let borrowing during Q3.
The lender has also seen a 400% increase in applications and a 350% rise in completions in the year to date. In addition, staff numbers have increased by 43% from 90 to 129 during 2019.
Peter Beaumont (pictured), deputy chief executive at TML, said: “2019 has been a record year for The Mortgage Lender in every sense.
“Through the hard work and dedication of our highly experienced team we’ve seen record levels of demand for our products through increases in decisions in principle, applications and completions.
“We’ve done this through competitive and innovative product design, closer relationships with our broker partners, investing in our people and our stand-out brand.
“This puts The Mortgage Lender in a strong position as we formulate our strategy for 2020 and beyond.”