Mistakes to avoid when choosing a barn for your barn conversion
- Astrum Construction
- 6 days ago
- 6 min read
Updated: 3 days ago

Barn conversions present you with a unique opportunity: to create your own home in the countryside that is completely one-of-a-kind and tailored to you. Disused barns can be found all across the UK countryside – but be careful; they will likely be in varying states of disrepair. Choosing the wrong barn for your barn conversion could lead to headaches, delays, and unexpected costs. Before you fall in love with those weathered timbers and spacious interiors, let’s explore some of the pitfalls to avoid when choosing a barn.
AVOID CHOOSING A LISTED BUILDING
Unless you are fully prepared for all that this entails. Listed properties have historical appeal, but they come with significant caveats. They are subject to a lot of very strict building restrictions. Before you buy your barn, always do your research. If you purchase a barn on a whim and it turns out to be a listed building, you may find that the barn conversion of your dreams isn’t possible.
It may be nigh on impossible to even get planning permission for your project in the first place, and if you do manage, you’ll find that there are a lot of rules to follow. Your finished conversion might be more expensive, take more time, and look different to what you had in your head when you started.
AIM TO MAKE SURE YOUR BARN FALLS UNDER CLASS Q
If you want to convert a building under Class Q permitted development rights, make sure your barn isn’t located in any of the following:
National parks
World heritage sites
Areas of outstanding natural beauty
Safety hazard areas
The Broads
Scheduled ancient monuments
You also need to ensure that your building wasn’t originally built under permitted development rights unless it has already been standing for 10 years.
Class Q has undergone some changes lately, so make sure you read up on the new regulations.
If your barn does fall under any of the above, you’ll have to go through the full process of obtaining planning permission.
THE PLANNING PERMISSION ROUTE
The costs of applying for planning permission vary widely, but at the very least you will ned to pay a fee to the local authority. You may also want to spend money on professional help with the process and for pre-application advice. You will need drawings for your planning application and will likely also require a structural survey and topographical survey.
Sometimes you might find a barn for sale that has already been granted planning permission. These can be more expensive to begin with, but it might save you a lot of time (and potentially some cash) because you won’t have to go through the planning permission application process yourself.
If you do decide to go for a barn that has already been granted planning permission, make sure your architect has liaised with the planning officer BEFORE you buy. That way, you’ll know that your planned barn conversion will be compliant with the requirements.
Now that we’ve covered the Class Q vs planning permission debate, let’s get into some more specifics about the barn itself. Here are some common pitfalls to avoid when searching for a barn to convert…
CHOOSING A BARN THAT IS NOT STRUCTURALLY SOUND
When viewing potential barns, keep an eye out for:
Cracks in the walls, ceilings, and foundations; these can all be signs of larger structural issues.
Check for any deformation in the structure of your barn. Any sagging in the roofs, floors, or walls can be bad news.
If your barn has been partially built with metals like steel, look for any signs of corrosion.
Check all the load-bearing elements (walls, beams, columns) for signs of damage.
Check the foundations: are there cracks or signs that the foundations are sinking? If so, tread carefully.
Look at the roof. Are there any leaks, missing parts, or areas where it looks like the roof is caving in on itself?
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