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Buying a Non-Standard Construction Property: What You Need to Know

22 July 2026

Non-standard construction properties, including timber-framed homes, concrete houses and listed buildings, can still be mortgageable, although lenders may assess them using different criteria. Checking the construction type, survey, insurance and mortgage options before committing can help buyers avoid delays and find a suitable lender.

non-standard construction
unusual properties
specialist residential mortgages
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Finding a property you love is exciting, but it can also raise unexpected questions. Perhaps you've found a charming thatched cottage, a timber-framed home, or a converted barn, only to discover that it may be classed as a non-standard construction property.

It's easy to assume that this means getting a mortgage will be difficult or even impossible. This is one of the most common misconceptions about non-standard construction homes.

While non-standard construction can sometimes require a little more consideration from lenders, many buyers successfully secure a mortgage on such a property with the right advice. The key is understanding what makes a property non-standard construction, knowing what lenders are likely to consider, and exploring your mortgage options before making a commitment.

In this article, we'll explain what non-standard construction means, why some properties can be more challenging to finance, and what you should know before applying for a non-standard construction mortgage.

What Is a Non-Standard Construction Property?

Most homes in the UK are built using traditional materials, such as brick or stone walls with a tiled or slate roof. When a property has been built using different materials or construction methods, lenders may consider it to be a non-standard property.

If you're wondering what non-standard construction is, it generally refers to homes built using materials or methods that fall outside traditional construction. While these properties aren't necessarily unsafe or of a lower quality, some lenders may view them as carrying additional lending risk.

As a result, applying for a non-standard construction mortgage may involve different lending criteria from those used for a standard residential property.

Common Types of Non-Standard Construction Properties

Non-standard construction covers a wide range of property types, many of which are popular with buyers because of their character or unique features.

Some of the most common examples include:

  • Timber-framed homes

  • Steel-framed houses

  • Concrete houses

  • Thatched cottages

  • Listed buildings

  • Barn conversions

  • Converted churches or mills

  • Eco homes built using alternative construction methods

Many of these properties are popular because of their character, history or unique design. While some may require a different lending approach, buying a non-standard property is more common than many people realise.

Whether you're looking for a mortgage for a timber-framed house, a mortgage for a steel-framed house, a mortgage for a concrete house, a mortgage for a thatched property or a mortgage for a listed building, it's worth remembering that every lender assesses these properties differently.

Why Can Non-Standard Construction Properties Be More Difficult to Finance?

A non-standard property isn't automatically harder to finance, but lenders may carry out additional checks before making a decision.

This is often because certain construction types may be more expensive to repair, more difficult to insure or, in some cases, harder to sell if the lender ever needed to repossess the property. This doesn't necessarily mean the property can't be financed. It simply means some lenders may need a little more information before making a lending decision.

Valuation also plays an important role. Surveyors will consider the property's condition, construction type and marketability, all of which can influence the lender's decision.

That doesn't mean a mortgage won't be available. It simply means the application may require a lender whose criteria are better suited to the property.

Can You Get a Mortgage on a Non-Standard Construction Property?

Can you get a mortgage on a non-standard property? In many cases, yes. The outcome will depend on factors such as:

  • The property's construction type

  • Its condition

  • The lender's criteria

  • The size of your deposit

  • Your income and affordability

  • Your credit history

The important thing is not to assume that one lender's decision reflects the entire market. Some lenders are more experienced in assessing non-standard construction properties than others, so exploring your options early can make a real difference.

What Should You Check Before Buying a Non-Standard Construction Property?

Before committing to any purchase, it's worth taking a little extra time to understand the property you're buying.

You may want to:

  • Confirm the property's construction type

  • Arrange a suitable survey

  • Check that appropriate buildings insurance is available

  • Understand any maintenance requirements

  • Speak to a mortgage adviser before committing to a purchase or making a mortgage application

Taking these steps early can help you make a more informed decision and avoid unnecessary surprises later in the buying process.

Specialist Finance Options for Non-Standard Construction Properties

If a mainstream lender isn't able to support your application, it doesn't necessarily mean buying the property isn't possible.

Some buyers may find that a specialist property mortgage is more suitable for their circumstances, particularly where the property falls outside standard lending criteria.

Depending on the construction type, specialist mortgage lenders may be able to consider properties that other lenders choose not to finance.

Finding a lender with experience of non-standard properties can make the process much more straightforward. A mortgage adviser can help identify lenders whose criteria are more closely aligned to the property you're buying.

How Crystal Property Finance Can Help

Buying a non-standard construction property doesn't have to be complicated, especially when you understand your mortgage options from the outset.

At Crystal Property Finance, we take the time to understand your circumstances and the property you're looking to buy before exploring suitable mortgage options.

Whether you're buying a timber-framed home, a listed building, a concrete house or another type of non-standard property, our experienced advisers will help you understand your options and guide you through the process from your initial enquiry right through to completion. With our extensive panel of specialist lenders, we are committed to helping you find a tailored solution. Our aim is to make the process simple and stress-free.

If you're considering buying a non-standard property, speak to Crystal Property Finance today. Call 01827 338803 or complete our online enquiry form to get started.

FAQs

What is a non-standard construction property?

A non-standard construction property is a home built using materials or construction methods that fall outside traditional brick or stone walls with a tiled or slate roof. Examples include timber-framed homes, steel-framed houses, concrete properties and thatched cottages.

 

Can I get a mortgage on a non-standard construction property?

Yes, in many cases you can. Eligibility will depend on the property's construction type, its condition, your financial circumstances and the lender's criteria.

 

Which construction types are considered non-standard?

Common examples include timber-framed, steel-framed and concrete houses, thatched properties, listed buildings, barn conversions and some eco homes.

 

Do I need a bigger deposit for a non-standard construction property?

Not always. Deposit requirements vary between lenders and will depend on factors such as the property type and your individual circumstances.

 

Can I get a mortgage for a concrete house or steel-framed house?

Yes. Some lenders may consider applications for these property types, although lending criteria can vary. Speak to Crystal Property Finance to help you understand which options may be available.

 

Which lenders offer mortgages for unusual properties?

Some mainstream lenders may consider certain non-standard properties, while others may not. Depending on the property, specialist lenders may be more suitable. At Crystal Property Finance, we can help identify lenders whose criteria best match your circumstances.

 

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