Here’s an uncomfortable truth about property renovation.
Most people who try it don’t make the money they expected.
A fair number make very little. Some make nothing at all. And a surprisingly large number actually lose money, not through bad luck, but through mistakes that were avoidable if they had known what to look for before they started.
That may sound a bit negative as an opening, but I don’t mean it that way. I’m not saying it to put anyone off. I’m saying it because once you understand where people usually go wrong, you immediately improve your own chances of avoiding the same problems.
Over the years I’ve seen investors at all levels fall into some very similar traps. Many of them were bright, hard-working people who had done some research and genuinely believed they understood what they were taking on. The problem was not a lack of effort. It was that understanding the general idea of a refurb and making a proper profit from one are not the same thing.
So what goes wrong?
The single most common problem I see is this: people approach renovation the wrong way round.
They find a property they like, convince themselves there must be a profit in it somewhere, and then start trying to make the figures fit. The costs get underestimated. The end value gets nudged up a little. The contingency gets left out because otherwise the deal starts to look marginal. And before long they are committed to a project where the figures only work if absolutely everything goes to plan.
On a renovation project, that is not a comfortable place to be.
Because absolutely everything very rarely goes to plan.
That does not mean every refurb turns into a disaster. Most do not. But it does mean there will often be one or two things that cost more than expected, take longer than expected, or turn out to be a bit more involved than they first looked. If your profit only existed because you were optimistic at the buying stage, those things can start eating into it very quickly.
The second big problem is a lack of clarity about what people are actually trying to achieve.
Are they renovating to sell on?
Are they renovating to let out?
Are they improving the property in order to refinance it, get their capital back out, and roll that into the next project?
These aren’t interchangeable objectives. They require different approaches, different specifications, different cost models and different exit strategies. If you are not clear about that from the start, it is very easy to make decisions that do not really fit together.
For example, if you are renovating to sell to an owner occupier, the finish will usually matter more. People buying a home want to feel they could live there. The kitchen matters. The bathroom matters. The overall feel of the place matters.
If you are renovating to let out, the emphasis is often different. You still want it to look good, obviously, but you are usually aiming for good quality, hard-wearing, practical finishes that suit the rental market and do not need redoing after five minutes.
If you are selling to another investor, they are much more likely to be looking at the figures. Yield, likely rent, condition, and whether they feel they are buying at a sensible price. Spending heavily on a premium finish for someone who mainly cares about the numbers is often wasted money.
And then there is the refinancing model, which I happen to like a great deal where the figures allow. In that case you are not just thinking about saleability or rentability. You are also thinking about what the valuer is likely to make of the property once the works are done and how much money you may be able to pull back out.
So this question of what you are trying to achieve is not a minor detail. It affects almost everything that follows.
The third mistake, which catches even quite experienced investors, is taking on a project that is more complex than their experience level is really ready for.
Renovation is a broad term. There is a big difference between a property that needs a new kitchen, a bathroom, some decorating and floor coverings, and one that needs structural repairs, planning permission, specialist contractors, or work to multiple units. Misjudging which category your project falls into can turn what looked like an opportunity into a very expensive lesson.
People often assume the bigger or more complicated project must mean bigger profit.
Sometimes it does.
But sometimes it just means more cost, more delay, more stress, and more scope for mistakes that are expensive to put right.
None of these problems is especially difficult to understand when you stop and spell them out. The trouble is that once people get excited about a property, common sense can start to slip a little. They focus on the potential and not enough on the practicalities.
That is where the trouble usually begins.
The good news is that renovation, done properly, really can work extremely well.
It is one of the most reliable ways I know of building equity and accelerating a property portfolio. The model I have often used is simple enough in principle: find the right property, do the right work, increase the value by more than you spend, and then, where the figures allow, refinance and recycle your capital into the next deal.
That can work very well.
But it works because of the preparation that goes in before the work starts, not despite a lack of it.
Over the next ten posts I’m going to run through the things I consider most important if you want to renovate profitably and avoid the mistakes that catch so many investors out.
They are based on real projects, real lessons, and what I have seen go wrong often enough to know that these points really do matter.
I hope you find them useful.
Here’s to successful property renovating.
Peter Jones (ex) Chartered Surveyor, author and property investor
www.thepropertyteacher.co.uk
By the way, I’ve completely rewritten and updated my course for 2026, The Successful Property Renovator’s Workshop — a comprehensive guide to renovating properties properly and profitably, based on my own experience across well over 150 projects over thirty years. For more details please go to: https://thepropertyteacher.co.uk/the-successful-property-renovators-workshop-2/