The Yorkshire-based lender has launched a two-year fix at 1.45%. It said this is the lowest rate offered by the society in its 140 year history.
The mortgage is available for house purchase applicants only and available for borrowers with a 40% deposit.
Leeds said the deal would be available for a restricted period, with the mortgage only on offer until Friday 16 October 2015.
Those taking out the mortgage are also able to access a free standard valuation worth up to £560.
Martin Richardson, Leeds Building Society’s director of business development, said that borrowers interested in the deal should act quickly.
“This is an outstanding offer that allows customers to guarantee low payments for two years, and benefit from the peace of mind this delivers,” he said.
“We are confident that certainty at an affordable rate will be very popular. There is a strictly limited tranche, and will be withdrawn no later than Friday 16th October 2015.”