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Sam covers personal finance topics, from the most affordable places to live to the reasons mortgage lenders say no. He enjoys crunching the numbers to help consumers get ahead.
Anna covers personal finance, helping readers make sense of savings, credit cards and insurance. Her insights are informed by experience in the financial services industry.
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Compare mortgagesIf you click on the link and complete a mortgage with L&C Mortgages, L&C is paid a commission by the lender and will share part of this fee with Which? Ltd helping fund our not-for-profit mission. We do not allow this relationship to affect our editorial independence. Your home or property may be repossessed if you do not keep up repayments on your mortgage.
In this article
Principality is a building society that currently has around 500,000 members.
Here, you can find out what Principality mortgage customers thought about its service, what our expert analysis uncovered about its range of deals, and the best Principality mortgage rates on the market right now.
Please note that this article is for information purposes only and doesn't constitute advice. Please refer to the particular terms and conditions of a provider before committing to any financial products.
Why you can trust our Principality mortgage review
Real Principality customer views
We've asked 59 Principality Building Society mortgage customers about their experiences of the lender.
Expert mortgage rate analysis
We've analysed Principality's mortgages to work out if it's a lender that offers competitive deals.
For the second year in a row Principality achieved the joint top customer score. Customers were particularly impressed with its communication and overall customer service. It fell short of becoming a WRP because it didn't offer competitive enough mortgage deals in our analysis.
81%
out of 21 mortgage lenders ranked on customer score (joint-1st)
To see how Principality compares with other mortgage providers, head to the best mortgage lenders.
Anna McClean, market analyst, says: 'We analysed thousands of mortgages, using Moneyfacts data, over three months in the summer/autumn of 2026. We created 28 mortgage scenarios, based on typical loan amounts, term lengths and mortgage products, to reveal the lenders that consistently offer the best deals. Ranking first means the provider offered, on average, the cheapest mortgage deals during our analysis period. Principality Building Society wasn't as competitive as other lenders on mortgages overall. Its best ranking was on remortgage deals.'
Here's how Principality Building Society did in our analysis:
Find out more:Â check which lenders came ahead of Principality Building Society in our cheapest lender interest rate analysisÂ
You can find the two-year fixed-rate mortgages Principality is currently offering first-time buyers with an 80%, 90% or 95% LTV using the table.Â
To see how Principality compares with rivals, see our guide to the best mortgage rates, which is updated every day.Â
| 80% | Principality Building Society | 81% | 5.53% | £1,499 | 6.25% |
| 80% fee free | Principality Building Society | 81% | 5.85% | £0 | 6.25% |
| 90% | Principality Building Society | 81% | 6.23% | £1,499 | 6.25% |
| 90% fee free | Principality Building Society | 81% | 6.52% | £0 | 6.25% |
| 95% | Principality Building Society | 81% | 6.75% | £1,499 | 6.8% |
Table notes: Data from Moneyfacts, updated daily. Customer score is based on a combination of overall satisfaction and likelihood to recommend the provider. The average customer score is 73%. The results are based on an online survey of 6,514 members of the public conducted in August/September 2026. Providers must receive a minimum of 40 responses for inclusion in the results. Principality Building Society had a sample size of 59.
You can find the two-year fixed-rate mortgages Principality is currently offering to home movers with a 60%, 75%, or 85% LTV using the table.
To see how Principality compares with rivals, see our guide to the best mortgage rates, which is updated every day.Â
| 60% | Principality Building Society | 81% | 5.3% | £1,499 | 6.25% |
| 60% fee free | Principality Building Society | 81% | 5.66% | £0 | 6.25% |
| 75% | Principality Building Society | 81% | 5.45% | £1,499 | 6.25% |
| 75% fee free | Principality Building Society | 81% | 5.71% | £0 | 6.25% |
| 85% | Principality Building Society | 81% | 5.53% | £1,499 | 6.25% |
| 85% fee free | Principality Building Society | 81% | 5.9% | £0 | 6.25% |
Table notes: Data from Moneyfacts, updated daily. Customer score is based on a combination of overall satisfaction and likelihood to recommend the provider. The average customer score is 73%. The results are based on an online survey of 6,514 members of the public conducted in August/September 2026. Providers must receive a minimum of 40 responses for inclusion in the results. Principality Building Society had a sample size of 59.
You can find the two-year fixed-rate mortgages Principality is currently offering to remortgagers with a 60%, 75%, or 85% LTV using the table.
To see how Principality compares with rivals, see our guide to the best mortgage rates, which is updated every day.Â
| 60% | Principality Building Society | 81% | 5.3% | £1,499 | 6.25% |
| 60% fee free | Principality Building Society | 81% | 5.66% | £0 | 6.25% |
| 75% | Principality Building Society | 81% | 5.45% | £1,499 | 6.25% |
| 75% fee free | Principality Building Society | 81% | 5.71% | £0 | 6.25% |
| 85% | Principality Building Society | 81% | 5.53% | £1,499 | 6.25% |
| 85% fee free | Principality Building Society | 81% | 5.9% | £0 | 6.25% |
Table notes: Data from Moneyfacts, updated daily. Customer score is based on a combination of overall satisfaction and likelihood to recommend the provider. The average customer score is 73%. The results are based on an online survey of 6,514 members of the public conducted in August/September 2026. Providers must receive a minimum of 40 responses for inclusion in the results. Principality Building Society had a sample size of 59.
Find the right mortgage using the fee-free service provided by L&C Mortgages
Compare mortgagesIf you click on the link and complete a mortgage with L&C Mortgages, L&C is paid a commission by the lender and will share part of this fee with Which? Ltd helping fund our not-for-profit mission. We do not allow this relationship to affect our editorial independence. Your home or property may be repossessed if you do not keep up repayments on your mortgage.
We asked Principality mortgage customers about their experiences with the lender.Â
Here's how they rated it on various aspects of service:
| Category | Star rating |
|---|---|
| Overall customer service | |
| Keeping you well informed (eg telling you about changes to interest rates) | |
| Clarity of mortgage statements | |
| Transparency of charges/penalties | |
| Flexibility of payments (eg being able to overpay/underpay/take payment holidays) | |
| Online access (eg being able to access your account online or via an app) |
Table notes:Â Â Star ratings are out of five. The results are based on an online survey of 6,514 members of the public conducted in August/September 2026. Providers must receive a minimum of 40 responses for inclusion in the results. Principality Building Society had a sample size of 59.
They are very good at what they do, always happy to help and always very friendly.
Along with our customer scores and star ratings, we also collect comments from real customers.Â
Customers consistently praised Principality Building Society's customer service, describing it as 'outstanding', 'always willing to help' and 'efficient'.
This positive feedback was reflected in customers' wider experiences with the lender, with many reporting few or no issues and saying it was easy to deal with.
When we checked in September 2026, there were 93 mortgages available from Principality Building Society. Most were fixed-rate deals, meaning your interest rate stays the same for a set initial period.
Principality mortgages had initial periods of two, three or five years.
Just 10 mortgages offered by Principality were tracker deals, with initial terms lasting two years before reverting to Principality’s standard variable rate.
Principality typically offers loans up to 4.49 times your income. Medical workers can qualify for loans up to five times their income, and newly qualified professionals up to 5.5 times their income.
First-time buyers can qualify for loans of up to 5.5 times their income.Â
Currently, Principality doesn’t offer preferential rates for energy-efficient homes or interest-free lending for green home improvements.Â
All of Principality’s mortgages allow a maximum term length of 40 years.
We’re not influenced by third parties. We work entirely on behalf of you, the consumer – nobody else. See our statement of editorial independence
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