If the search for your next home is leading you to new construction instead of an existing house, you’re not alone. New residential permits, “starts” and completions were all up in May. And just like most buyers of existing homes, you’ll probably need a home mortgage loan to pay for that never-been-touched abode.

All homeowners want the best deal possible on their mortgage, but those buying new construction have a partner in the deal who may be especially motivated to sell — the home builder or developer, who won’t see a profit until the neighborhood starts selling. A buydown is a way to attract buyers by reducing their interest rates and lowering their monthly payments.

A buydown isn’t just for home builders or developers, but it’s so common it’s often known as a builder buydown mortgage and can certainly take a chunk out of the expenses that come with buying and outfitting a brand-new house.