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1.5 Million Homes Impacting the UK Mortgage Market

Over 1.5 million UK homes are classified as unmortgageable , affecting buyers and investors in the mortgage market.

By David Sampson
2 August 2026
3 min read
UK residential mortgage article image for 1 5 Million Homes Impacting the UK Mortgage Market

TL;DR

  • More than 1.5 million UK homes are deemed ‘unmortgageable’ due to factors like construction type and condition.
  • this affects borrowers seeking financing options.

Written by David Sampson for Mortgage118. Last updated 2 August 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

Recent research has revealed that over 1.5 million homes in the UK are considered ‘unmortgageable’ by mainstream lenders. This significant figure highlights a growing concern in the mortgage market, as many properties fail to meet traditional lending criteria, impacting potential buyers and investors alike.

What Makes a Property Unmortgageable?

According to the findings, approximately 6% of the UK’s 28 million residential properties may struggle to secure mainstream mortgage finance. Factors contributing to this classification include:

  • Construction type, such as thatched cottages and high-rise flats
  • Lease length
  • Condition of the property, including those lacking functioning kitchens or bathrooms
  • Proximity to commercial premises

These criteria can severely limit the options available for buyers looking to finance their property purchases.

Why Are Buyers Interested in Unmortgageable Properties?

Despite the challenges, many buyers are drawn to unmortgageable properties for various reasons. Among those who have considered purchasing such properties:

  • 44% believe these homes offer better value for money compared to traditional properties.
  • 31% are motivated by the chance to renovate or restore the property.
  • 28% aim to add value before selling for a profit.
  • 31% see a worthwhile risk-to-reward ratio, despite acknowledging the process may be difficult.
  • 21% feel the potential rewards outweigh the risks.
  • 19% are willing to take on properties that others might avoid.

This interest suggests a segment of the market is willing to embrace the challenges associated with these properties for the potential of greater returns.

What This Means for the Mortgage Market

The implications for buyers and investors are significant. With over a quarter (28%) of respondents citing lower purchase prices as the main attraction, this can be particularly appealing for first-time buyers and buy-to-let investors. For those purchasing as their primary residence, this figure rises to 32%. Additionally, 35% of buy-to-let investors are motivated by the prospect of rental income from such properties.

However, potential buyers should be aware that 21% of respondents reported having their mortgage applications rejected, and 32% indicated limited access to lenders willing to consider their applications. This highlights the importance of understanding the mortgage market and exploring alternative financing options when considering unmortgageable properties.

Frequently Asked Questions

What should I consider when buying an unmortgageable property?

When considering an unmortgageable property, assess its condition, potential renovation costs, and the availability of financing options. Understanding the risks involved is important.

How can I finance an unmortgageable property?

Alternative financing options may include specialist lenders who cater to unmortgageable properties or considering cash purchases if feasible. Researching these options is essential.

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.