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Over 1.5m UK Homes Considered Unmortgageable

Over 1.5 million UK homes are classified as unmortgageable, impacting buyers and investors seeking value and renovation opportunities.

By David Sampson
3 August 2026
2 min read
UK residential mortgage article image for Over 1 5m UK Homes Considered Unmortgageable

TL;DR

  • More than 1.5 million UK homes are classified as unmortgageable due to high street lenders strict criteria.
  • this affects buyers seeking value and renovation opportunities.

Written by David Sampson for Mortgage118. Last updated 3 August 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

Recent research reveals that over 1.5 million homes in the UK may be deemed “unmortgageable” by mainstream lenders, significantly impacting potential buyers and investors. This situation arises from stringent lending criteria that exclude properties with certain characteristics, limiting options for those looking to enter the market.

What Makes a Home Unmortgageable?

According to a study by specialist lender Together, approximately 6% of the UK’s 28 million residential properties are considered unfit for standard mortgage financing. Common factors include thatched roofs, short leases, solid-wall construction, high-rise locations, and proximity to commercial premises. Additionally, properties lacking essential amenities like functioning kitchens or bathrooms are also excluded from mainstream lending.

Who is Affected by This Situation?

The implications of these findings are far-reaching. Buyers who have considered properties outside standard lending criteria often see advantages, with 44% believing these homes offer better value than traditional options. Furthermore, 31% are interested in renovation projects, while 28% view these properties as opportunities for value appreciation before resale. For buy-to-let investors, 35% are motivated by the potential for rental income from these unconventional homes.

What This Means for Buyers and Investors

The research indicates that 21% of buyers have faced mortgage application rejections, while 32% reported a reduced selection of lenders willing to consider their applications. This scenario creates a challenging environment for those interested in purchasing unique properties. Buyers may need to explore alternative financing options or consider properties that meet mainstream lending criteria to avoid complications.

Frequently Asked Questions

What should I do if my property is deemed unmortgageable?

If your property falls into this category, consider seeking specialist lenders who may be more flexible with their criteria. Renovation loans or alternative financing options could also be viable paths.

How can I identify if a property is likely to be unmortgageable?

Look for red flags such as unusual construction types, short leases, or missing essential amenities. Consulting with a mortgage advisor can provide clarity on a property’s mortgage eligibility.

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.

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