The lender has completed 1475 NewBuy applications representing one in three of all applications and completions on the scheme.
Stephen Noakes, mortgage director at Halifax, said: “Our commitment to NewBuy has been clear since the scheme launched. We are continuing to increase the number of builders we are working with.
“It is a testament to our commitment to put the purchase of a new-build home back within the grasp of both first time buyers and homemovers.”
To ensure lower volume builders can participate in the scheme, the bank has partnered with smaller local and regional builders as well as UK-wide builders.
Halifax recently reduced rates on its 2-year 90 to 95% LTV NewBuy mortgages, with rates now available from 4.99% with a £999 fee and 5.39% with no fee.