He Bought a Barn for €45,000: Three Years Later, Mathieu Tells the Truth

On Sunday mornings, in the small village he now calls home, Mathieu still swings open the large wooden doors of his former barn before putting the coffee on. Three years after buying it, the stone walls still show their uneven surfaces, the floorboards creak in the hall, and an old beam cuts across the living room like a memory that cannot be erased. Purchased for €45,000, the building seemed almost too good to be true: 140 m² to renovate, a modest plot, a worn roof and no insulation worthy of the name. Nevertheless, after two years of building work, uncertainty and bills that never arrived alone, his family moved in. He no longer romanticises the experience. Instead, he explains what worked, what caught him out and what he would do differently. The reality is less polished than the before-and-after photographs suggest.

At €45,000, the barn looked like the deal of a lifetime

The first viewing took place on a rainy day - far from insignificant when you are considering buying a barn. Mathieu remembers the smell of damp earth, the dark roof tiles and the daylight streaming through an unglazed opening, where his daughter’s bedroom now stands. The asking price was astonishing in the best possible way: €45,000 for a building 25 minutes from a medium-sized town, while habitable homes nearby were already selling for more than €180,000. He fell for it immediately, almost awkwardly so. We all know that moment when we picture an entire life in a place that is still empty.

On paper, the scheme looked manageable. Mathieu and his partner had a €70,000 deposit and expected to spend around €120,000 on the renovation, completing the decorating, flooring and part of the interior fit-out themselves. However, the first overall quote they received after the purchase came to €198,000. Roof structure, drainage, plumbing, utility connections and joinery: every item revealed an issue neither of them had spotted during the two viewings. “We had bought walls, not a house,” he now says with a slightly weary smile. That distinction transformed the whole project.

The danger was not the low purchase price, but the gap between the dream and the building’s true condition. An old barn can provide unusual space, sturdy walls and a character that new builds struggle to replicate. Equally, it may conceal weak foundations, rising damp or a roof that remains standing largely through habit. Mathieu had asked a tradesperson to inspect it before signing, but he did not hire either a project manager or a structural engineering firm. He thought he was saving a few hundred euros; instead, he bought uncertainty. Three years later, he believes that saving cost him nearly €15,000 in remedial work and delays.

Barn conversion work costs more than money

His advice is straightforward: before discussing an open-plan kitchen or a picture window, put a price on what cannot be seen. Mathieu recommends obtaining full assessments of the roof, walls, drainage, electrical installation, connection to the water network and the ground conditions. It is also essential to check the local planning policy, as converting an agricultural outbuilding into a home often requires a change of use, with sometimes strict requirements for openings and external appearance. In his case, a garden-facing window had to be moved two metres following a request from the local council. That meant three months lost, and a budget that had to be revised.

The most significant mistake involved insulation. Keen to retain the exposed stonework, the couple planned to insulate only internally, using thin materials to avoid reducing the room sizes. It was an appealing idea, but the north wall stayed cold and damp developed behind poorly ventilated lining. Part of it had to be removed the following winter - with no pleasure and no refund. Let us be honest: nobody genuinely does this every day, managing tradespeople, comparing quotes and getting to grips with vapour barriers after finishing work for the day. Mathieu now advises keeping 15 to 20% of the original budget in reserve, even when everything appears to be under control.

Despite the setbacks, some decisions prevented the renovation from becoming a complete financial sinkhole. The family retained the barn’s overall shape, kept costly new openings to a minimum and postponed fitting out the garage, which became temporary storage rather than a completed room.

“The right project is not the one that looks like a magazine; it is the one you can still afford and live in without wearing yourselves out.”

• Have the structure inspected before signing the preliminary sale agreement;
• Set aside a dedicated contingency fund;
• Give priority to the weatherproof shell, insulation and heating;
• Delay finishes that can wait a year or two.

Three years on: an imperfect home that is genuinely lived in

Today, Mathieu’s assessment cannot be reduced to one figure. The project ultimately cost him around €236,000, including the purchase, fees, renovation work and fittings - considerably more than the €165,000 he had initially envisaged. Even so, a renovated family home of this size would now sell for more in his area, without even accounting for its practical value: meals beneath the roof frame, children running in the garden and the workshop where he repairs his bicycle. The house is warm, bright and suited to their everyday life. One façade still needs work, and one shower room remains unfinished. It is not especially photogenic, but life is rarely perfectly framed.

What surprised him most was not the rising budget. It was the mental load of the renovation, which carries on into the evening: choosing a door handle while the loan funds have just been released and a tradesperson is waiting for an answer. His partner admits they sometimes got caught up in minor details to avoid confronting the real issues: money, exhaustion and a timetable that kept slipping. They moved in with a temporary kitchen and boxes lining the hallway. They now describe it as a bad memory tinged with pride. The house was finished enough to be lived in.

This story does not mean that every old barn is a sound investment. Rather, it shows that a low purchase price never guarantees an affordable project, particularly when materials, energy and labour are expensive. For some people, buying an already renovated home will provide valuable peace of mind. For others, accepting the marks of a building site and progressing room by room will offer a kind of freedom. Mathieu does not advise anyone to copy his decision. He encourages them to ask the right question: what is it worth to you to create a place in your own image, with its visible flaws and quiet successes?

Key point	Detail	Value for the reader
Attractive purchase price	Barn bought for €45,000, but uninhabitable as it stood	Avoid mistaking a low price for the project’s true cost
Final budget	Around €236,000 after renovation work, fees and unforeseen costs	Allow a realistic financial margin from the outset
Main lesson	Prioritise the structure, insulation and utilities	Make the right trade-offs before decorative finishing work