Even within Burlington, the questions I receive from those looking at properties in South End and those in New North End are not very different. "Where do these rates come from?" Although the areas are different, the structure that determines the rates is the same, so it's easier to explain by comparing the two locations.

The factors that influence mortgage rates can be broadly divided into three categories. First is the yield on 10-year Treasury bonds, which serves as a benchmark for the average maturity of mortgage loans. Second is the federal funds rate and inflation indicators, which affect the expected yields across the bond market based on the rate of price increases. Third is the supply and demand situation in the mortgage-backed securities (MBS) market, where the actual loan rates are adjusted based on how much investors are willing to buy these bonds.

With these three factors in mind, let's compare 30-year fixed and 15-year fixed mortgages side by side. According to Freddie Mac's PMMS in mid-2026, the 30-year fixed rate is forming in the mid to high 6% range, while the 15-year fixed is often about 0.5 to 0.7 percentage points lower. The 30-year option has a lower monthly payment burden, making it easier to enter initially, while the 15-year option significantly reduces total interest but results in a higher monthly payment.

Similarly, fixed rates and ARMs (Adjustable Rate Mortgages) can be compared. ARMs start with lower rates than fixed rates for the first 5 or 7 years, but after that, they adjust based on market indicators. For those planning to move again in a few years, an ARM may be advantageous, but for those looking for a long-term home, a fixed rate is more stable.

There have been instances where clients making offers in South End and New North End received different rates from the same bank. The reason was not the location but differences in credit scores, DTI, and down payment ratios. Comparing ranges of credit scores above 760 and in the 620s can show nearly a 1% point difference, meaning individual conditions can greatly influence the final rate even within the same neighborhood.

Burlington has a distinct characteristic where the flow of properties differs between areas near the university and quiet residential neighborhoods. The area near the university tends to have steady rental demand, leading to inquiries for investment purchases, while the residential area sees more owner-occupied purchases, slightly altering the direction of loan consultations.

For Korean households, regardless of which area you choose, I recommend obtaining estimates from at least two or three lending institutions before signing a contract. Even with the same credit conditions, the rates and fee structures offered by different lenders can vary, and I have frequently witnessed that comparing them leads to actual cost savings.

Ultimately, regardless of the neighborhood or product chosen, the broad framework for determining rates remains the same. However, the process of selecting the right option within that framework varies based on individual credit status and financial plans, so it's good to keep that in mind.