Your home report has flagged damp or rot

Somewhere in the middle of your home report there is a table, and in that table there is a 3 where you were hoping for a 1. The wording underneath probably mentions dampness, timber decay, or the phrase that worries people most: further investigation by a specialist is recommended.

This page explains what that sentence actually means, what it does not mean, and how to get from it to a decision inside the fortnight or so a Scottish purchase tends to allow.

The three categories, in plain terms

Every Scottish home report contains a single survey, and the surveyor rates each part of the property on a three point scale.

• Category 1. No immediate action or repair needed.
• Category 2. Repairs or replacement are needed, but not urgently. Keep an eye on it, budget for it, deal with it in due course.
• Category 3. Urgent repairs or replacement are needed, and the surveyor expects them to be costed before the sale concludes.

A category 3 sounds like a verdict on the building. It is closer to a verdict on what the surveyor was able to establish. They inspect visually, without lifting floors, moving furniture or opening up walls, usually in under an hour. When they cannot see the extent of something, the cautious rating is the only defensible one.

That distinction matters because it means a 3 can describe two completely different situations: a serious, obvious, spreading problem, or an ordinary one that could not be assessed properly from where the surveyor was standing. Both get the same number.

What “specialist report” means, and who writes one

It means a written report from a firm that carries out timber and damp work, setting out what was found, how far it goes, what caused it, what should be done and what that costs.

It is not the same document as the home report, and the surveyor who wrote your home report will not usually produce it. Chartered surveyors value and assess. Specialist firms open up, take readings, probe timber and price the work. The lender wants the second one because it contains the figure.

Expect it to name the cause. A report that says there is wet rot in the bathroom floor and stops there has done half the job, because the reason the floor is wet is what determines whether the repair lasts. What one should contain is set out on timber survey.

Why it happens so often in Scottish property

If you are buying a tenement flat, a colony house, a cottage or anything Victorian, some version of this note is close to standard. The reasons are structural rather than a sign that this particular property has been neglected.

Solid sandstone walls with no cavity and no damp proof course. Floor joists whose ends are built directly into that masonry, where nobody can see them. Suspended timber floors over voids that were designed to be ventilated by airbricks, most of which have since been buried by a raised path, a flowerbed, decking or a rear extension. Lime plaster on lath, which holds moisture differently from modern gypsum and reads differently on a meter. High rainfall and long wet autumns. Cast iron rainwater goods a century old.

Put those together and a certain amount of moisture in the fabric is normal, historic and not an emergency. The job of the specialist report is to sort the normal from the actual.

What your lender will do

Lenders take their view from the home report valuation, and there are three usual outcomes when timber decay or dampness carries a 3.

They ask for the specialist report. Most common, and usually the end of it. They read the figure, satisfy themselves the property is worth the money, and proceed.

They apply a retention. The loan is advanced minus the estimated cost of the works, with the balance released once the work is done and evidenced. The property is still being lent on. The catch is that you need that difference in cash on the day of entry, so establish the number early rather than in the final week.

They lend on the property as it stands. Which shows up as a lower valuation, and if that valuation comes in under your offer, the shortfall is yours to cover.

None of these is a refusal, and all of them move faster if the report already exists when the lender asks.

The timetable, which is the real problem

In Scotland the sequence is compressed and it runs in an awkward order. The home report exists before you offer. Your offer goes in, negotiation happens through solicitors, and then missives are concluded, at which point you are contractually bound.

Everything you might want to renegotiate has to happen before that conclusion. So the moment a category 3 appears, the clock you are working to is not your date of entry. It is the date your solicitor intends to conclude, and specialists get booked up.

Practical sequence that works:

1. Tell your solicitor immediately that you want a specialist report before missives conclude, so it can be built into the negotiation rather than bolted on late.
2. Book the inspection the same day you read the report. Access has to be arranged through the selling agent, and that is usually the slowest link in the chain.
3. Ask for a written report with a priced scope, not a verbal opinion, because your solicitor and your lender both work from documents.
4. Get it to the lender as soon as it lands, since a retention decision made late is the thing most likely to move your entry date.
5. Negotiate on the figure, either as a reduction or as work carried out by the seller before entry with the guarantee assigned to you.

Reading the wording, not just the number

The category tells you the urgency. The paragraph underneath tells you the story, and it is worth reading closely.

“Access was restricted” or “the surveyor was unable to inspect” is the most common phrase behind a precautionary 3. It means nobody has actually assessed the thing yet.

A named location is useful: under the bay window, at the foot of the stair, adjacent to the bathroom, against the gable. Each of those points at a different water source, and the source is what determines the cost.

“Elevated moisture readings” is not the same as rot. It is a meter result, and meters are indicative rather than conclusive on masonry.

“Fungal decay” or a species name means something was actually seen. If Serpula lacrymans appears, read buying a house with dry rot, because that one behaves differently from everything else.

“Timber infestation” or flight holes usually means woodworm, which is generally the least serious finding in the report and very often historic. There is more in should you buy a house with woodworm.

Category 2 is not nothing, and not urgent

Easy to skim past, and mostly that is fine. A category 2 against dampness or timber typically means the surveyor saw early or limited evidence and expects it to need attention at some point.

Two situations make a 2 worth investigating now rather than later. If you are buying at the top of your budget with nothing left over, knowing whether a 2 becomes a 3 in three years is worth the inspection fee. And if the 2 sits next to a note about guttering, roof coverings or rainwater goods, the timber comment and the water comment are probably the same problem described twice, in which case fixing the water early is much cheaper than fixing the timber later.

What you are really buying with a specialist report

Not reassurance. A number, and a cause.

With those two things your solicitor can negotiate, your lender can decide, and you can work out whether the property is still worth what you offered. Without them, everyone in the chain is guessing, and in a negotiation the person guessing loses to the person holding a document.

That report is a timber survey. If you are working to a concluded missives date, say so when you book it, because that changes how the visit is scheduled and what the report needs to spell out.