Commercial mortgages for healthcare premises

Commercial mortgage rates explained

By Medical Centre Property Finance · · Reviewed 20 June 2026 · 5 min read

Commercial mortgage rates explained

The short version

  • A commercial mortgage rate is a lender margin added to a reference rate, such as the Bank of England base rate or a swap rate.
  • The margin reflects your risk: a stronger case, a lower loan to value and a reliable income all earn a finer margin.
  • Rates can be fixed for a period or left to vary with the reference rate. Each suits a different appetite for certainty.
  • We do not quote live rates, because the rate that applies to you depends on your numbers on the day. We explain the mechanics so you can read any quote.

Buyers often ask us for the current commercial mortgage rate, expecting a single advertised figure. There is not one. A commercial mortgage rate is assembled from parts, and the part that varies most is the lender's view of your risk. This article explains how the pricing works, the difference between fixed and variable, and what moves a rate up or down, so you can read any quote you are given.

It sits under our hub on commercial mortgages for healthcare premises. We do not quote live rates here, because yours depends on your case.

How a commercial mortgage rate is built

A commercial mortgage rate has two parts: a reference rate that the lender does not control, and a margin that it does. Add them together and you have the rate you pay.

The reference rate moves with the wider economy and is the same for everyone. The margin is personal to your case, which is why two healthcare buyers can be quoted very different rates on the same day.

Nobody pays the reference rate. You pay the reference rate plus a margin, and the margin is the bit you can influence.

What moves the margin

The margin is where the strength of your case shows up. Lower risk earns a finer margin; higher risk costs more.

What pushes a margin up or down
FactorFiner marginWider margin
Loan to valueLower, for example 60 per centHigher, for example 80 per cent
IncomeContracted, for example NHS notional rentNew or variable private income
Trading historySeveral years of clean accountsLimited track record
PropertyStandard, easily resoldSpecialist, harder to sell
Debt service coverComfortably above 1.25Close to 1.0

This is why packaging earns its keep. Presenting a lower loan to value, a contracted income and a strong DSCR can move the margin in your favour. Test the structure with our loan to value and DSCR calculators.

Fixed versus variable

Once the margin is set, you choose how the reference-rate part behaves. A fixed rate is locked for a period, often two to five years, so your payments do not change even if the base rate moves. A variable rate tracks the reference rate, so your payments fall when it falls and rise when it rises.

  1. Fixed

    Certainty of payment for a set period, useful when budgeting around contracted income. You may pay a little more for that certainty, and early repayment charges can apply.

  2. Variable

    Payments follow the reference rate. Cheaper if rates fall, dearer if they rise. Suits a business comfortable carrying that risk.

Neither is right or wrong; it depends on how much certainty your business needs. A practice repaying out of steady NHS income often values the predictability of a fix.

What a rate costs you in payments

A rate only means something once you see it in pounds. The same rate costs more on a larger loan, and the term, how long the loan runs, spreads the capital over more or fewer years, changing the monthly payment.

Reference + margin
How the pay rate is built
Illustrative
2 to 5 years
Common fixed-rate periods
Indicative, varies by lender
15 to 25 years
Typical owner-occupier term
Indicative

Why we will not quote you a live rate

We deliberately do not publish live commercial mortgage rates. Any headline figure would be misleading, because your rate depends on the margin a lender sets for your specific case, which we only know once we have your numbers and a lender's response.

What we do instead is explain the mechanics, then go to the market and bring back real quotes you can compare on a like-for-like basis. Reading those quotes is easier once you understand the margin-over-reference structure above. See also how difficult it is to get a commercial mortgage and how much deposit you need.

We are an arranger and introducer, not a lender. Most commercial mortgages are unregulated, but where a loan is secured on your home, or otherwise inside the FCA perimeter, that part is regulated and we refer it to an authorised firm. More options at our healthcare finance hub.

FAQ

Frequently asked questions

How are commercial mortgage rates set?

A commercial mortgage rate is a lender margin added to a reference rate, such as the Bank of England base rate or a swap rate. The reference rate is the same for everyone; the margin reflects your risk, so a stronger case earns a finer margin.

Should I choose a fixed or variable commercial mortgage rate?

A fixed rate locks your payments for a period, giving certainty but sometimes a small premium and early repayment charges. A variable rate tracks the reference rate, so payments fall or rise with it. The right choice depends on how much payment certainty your business needs.

Why won't you quote me a rate?

Because your rate depends on the margin a lender sets for your specific case, which we only know once we have your numbers and a lender's response. We explain the mechanics, then bring back real quotes to compare. See our hub.

Talk to us about funding

Tell us what you are buying, building or refinancing and we will come back with indicative terms. No obligation.