Timber-framed houses, thatched roofs, flats above commercial premises, or properties built using less common construction methods can all be genuinely harder to mortgage than a standard brick-built house, regardless of the property’s condition or your own financial circumstances.
Why Construction Type Matters to Lenders at All
Standard mortgage lending assumes fairly conventional construction – brick or stone walls, a tiled or slate roof, standard foundations. Properties built differently can raise questions about longevity, insurance availability, and resale demand that a lender needs to be comfortable with before agreeing to lend, entirely separate from your own affordability and credit profile.
Timber-Framed and Other Non-Traditional Construction
Timber-framed properties are entirely legitimate and increasingly common, particularly in newer developments, but some lenders remain more cautious about them than solid masonry construction, particularly for older timber-framed properties where the specific construction method and its condition matter considerably to a lender’s assessment.
Thatched Roofs Specifically
A thatched roof adds fire risk and higher insurance cost considerations that some lenders factor into their assessment, and insurance availability and cost for a thatched property is itself worth checking early, since a lender will typically want confirmation that adequate buildings insurance is achievable before agreeing to lend.
Flats Above Commercial Premises
A residential flat above a shop, restaurant, or other commercial unit introduces considerations around noise, cooking smells, fire risk from the commercial unit below, and sometimes shared access arrangements, all of which some lenders assess more cautiously than a standalone residential building.
Ex-Local Authority and System-Built Properties
Certain post-war construction methods used in some local authority housing developments are treated cautiously by some lenders due to historical concerns about specific construction systems, even where a particular property has been properly maintained and shows no issues – it’s worth checking whether your target property’s specific construction type has any known lending restrictions before committing.
Concrete and Prefabricated Construction From the 1960s and 1970s
A number of specific system-built concrete construction methods used during this period carry particularly well-known restrictions among some lenders, sometimes regardless of a property’s current condition, due to historical concerns about the durability of the specific building system rather than the individual property. It’s worth researching whether your target property uses one of these specifically flagged systems, since this can be a more significant restriction than general “ex-local authority” caution.
Why a Specialist Lender, Rather Than a Mainstream One, Is Often the Answer
Rather than assuming non-standard construction rules out a mortgage entirely, the more accurate picture is that it narrows your realistic lender pool to those genuinely comfortable assessing that specific construction type – some lenders specialise in exactly this kind of property, and identifying them early is far more efficient than repeated declines from mainstream lenders unfamiliar with the construction method.
If the Property Needs Work to Bring It Up to Standard
Some non-standard construction properties, particularly older ones, may need renovation work before they’re in a straightforwardly mortgageable condition. Our Self Build Mortgage Finance page covers staged finance structures relevant if significant work is needed as part of the purchase.
Buying at Auction, Where Non-Standard Construction Properties Are Common
Non-standard construction properties often come to market through auction, partly because they can be harder to sell through conventional estate agency routes to buyers reliant on standard mortgages. Our Property Auction Finance page covers the specific timeline pressures of auction purchases, which frequently apply alongside non-standard construction considerations.
If You’re Considering Converting the Property Into Multiple Units
Some non-standard construction properties, particularly larger older buildings, get considered for conversion into HMOs or multiple flats. Our HMO Mortgages page covers how that kind of property use is assessed separately from the construction type itself.
Getting a Proper Assessment Before You Commit From Overseas
Since non-standard construction issues can be genuinely hard to assess remotely from photographs or a standard listing description alone, it’s worth having a broker or surveyor confirm the specific construction type and any known lending restrictions before you commit significant time or money to a property you may not actually be able to finance.
Frequently Asked Questions
Does non-standard construction always mean a higher mortgage rate?
Not necessarily, but it does typically narrow your lender pool, which can affect the range of rates realistically available to you.
Can I get a mortgage on a thatched property?
Often yes, with the right lender, though insurance availability and cost are worth checking early alongside the mortgage itself.
Are ex-local authority properties always harder to mortgage?
Not always – it depends on the specific construction method used, which varies considerably even among properties built in the same era.
Should I get a specialist survey for a non-standard construction property?
Often worth considering, given standard valuations may not fully assess construction-specific risks that a more detailed survey would catch.
Get in touch with details of the property’s construction type, and we’ll help you identify lenders genuinely comfortable with that specific kind of property.
