The company said the offer also now applies to all brokers applying for two-year, fixed-rate, standard property buy-to-let mortgages and standard, five-year, fixed-rate buy-to-let mortgages for properties that meet their criteria.
Zephyr said the offer, which was previously only available through packagers, was recently extended to intermediaries who wish to submit applications directly to the lender.
Paul Fryers, Managing Director at Zephyr Homeloans, said: “Extending access to 80% LTV standard mortgages is part of our efforts to give brokers and borrowers the widest possible choice of products so they can find loans that best suit their individual circumstances.”