According to the lender, rates for its specialist new builds, flats above commercial property, HMO and multi-unit freehold blocks now start at 3.43% for a five-year fixed rate.
Zephyr confirmed they will continue to offer their 80% LTV mortgages, which are exclusively available through their packager channel.
Paul Fryers, managing director at Zephyr Homeloans, said: “Our broad range of products offer several, flexible options to fit the individual needs for landlords and property investors.
“Reducing the rates across a majority of Zephyr’s mortgage products reinforces our position as one of the more competitive lenders in the UK buy-to-let market.”