Barn conversions: unique home survey issues every buyer should check
It’s easy to be charmed by the exposed beams, open spaces and vaulted ceilings of a tastefully executed barn conversion.
But beyond the character, hidden problems can dramatically affect the property’s longevity, safety and usability. They’re not necessarily dealbreakers, but it’s essential ensure your client is paying what the converted home is actually worth. Understanding the risks is crucial before a purchase goes ahead.
At GB Home Surveys, we’ve spent decades inspecting converted barns across the West Midlands, the South West, Bristol, Bath, the Cotswolds, and South Wales. Our experience helps buyers, and the agents, lawyers and advisers representing them, avoid surprises and make informed decisions.
Here are five things you and your buyer should be aware that a professional chartered surveyor might uncover.
Structural integrity of the original barn
One of the first things we examine is how well the original barn structure has withstood the test of time. Many barns in the English or Welsh countryside were built decades or even centuries ago, using materials such as wood, stone or lightweight blockwork.
A previous owner may have converted the barn into a home without obtaining partial or full planning permission. These properties run enormous risks for your client, as conversions often introduce new loads, such as additional floors or mezzanines, that the original structural framework wasn’t designed to support. Sagging beams or uneven floors aren’t always visible at first glance, but they’re a sure sign of structural problems.
Roofs, insulation and moisture
Original roofs may have been altered during the conversion, sometimes without proper support or weatherproofing. Leaks inevitably lead to damp, mould and hidden timber rot in the beams and trusses. Even small gaps in roof coverings can let in moisture, or sometimes insects and other pests.
You often find high ceilings in barn conversions, which can make heating much more expensive. Thus, if your survey finds problems with the roof, it has a knock-on effect. Your client will want to get it repaired before they move in.
Another common problem with roofs is the type of material used. In certain parts of the UK, such as many areas of the Cotswolds, for example, planning permission comes with very strict conditions. You must use the approved materials (in this case, Cotswold stone slate). If the conversion was done using the wrong type of tile, the council might notice and order the owner (who, by that point, could be your client) to strip and replace the roof at their own cost.
Foundations and ground conditions
Barns were often built on shallow foundations like stone plinths or simple footings. Over time, the soil beneath those foundations has inevitably shifted. Ground movement can lead to cracking in the walls or uneven floors. In some cases, the structure itself may require remedial work.
Drainage problems, especially around entrances or courtyards, are also common because the builder of the original barn may not have taken this into account when it was constructed. Plus, if the ground has shifted, the drainage patterns will be different to how they were decades ago. Once drainage problems build up, they create a vicious cycle by further exacerbating structural movement.
Services and utilities
Most barns were never built with services and utilities. There may have been a tap or two for a water trough, or a couple of lights hanging from the ceiling, but that’s usually all they would need.
Converting a barn requires installing modern plumbing, heating, electricity and drainage. If a previous owner did this properly, there shouldn’t be a problem. However, if not, your client may encounter problems, especially once winter arrives. Pipes may freeze, heating systems could fail, septic systems might clog, and wiring might not comply with current regulations, to name a few.
Planning, listing and compliance
Many converted barns owe their survival to the fact that they’re listed buildings or sit in conservation areas. While these restrictions have kept the building standing, they also mean alterations can be very difficult to make. Your client might even need permission from the council to make minor changes to windows, walls or doors.
If your buyer is willing to go through the official processes, that’s great. However, partially (or completely) unapproved conversions can present significant legal and financial risks if they don’t comply with planning regulations. A RICS home survey level three examines the available previous planning documentation to ensure the converted barn complies with its permitted use.
The most important part of your survey: communication
High-value property deals usually involve multiple parties. A clear, well-structured home survey is only useful if the buyer and you, as their representative, can understand and act on it.
At GB Home Surveys, our dedicated team of friendly chartered surveyors goes above and beyond to provide a professional, personal service to you and your client. Your surveyor will provide their phone number and email address after delivering the report. This allows for immediate dialogue about the urgent repairs, long-term maintenance or planning concerns that can be so worrying in barn conversion purchases.
If you’re a property professional representing a client interested in purchasing a converted barn, you can contact us today on 03333 600 685 or email contact@gbhomesurveys.co.uk to instruct a RICS Home Survey Level 3. Your clients deserve clarity before committing to a property with so much character and complexity. We look forward to hearing from you and helping your buyer on their home-buying journey.
