Written by Callum Lyman AssocRICS, Director, Surveyor and RICS Registered Valuer at Lyman Marshall Chartered Surveyors. Published 17 September 2026 · Updated 17 September 2026
The government’s own homebuying guidance separates the two things completely: your mortgage provider will carry out a valuation before they approve your mortgage, and a survey to check the condition of the property is something you arrange yourself. What a mortgage surveyor looks for follows directly from that split, and almost every expensive surprise after completion traces back to blurring it.
Buyers routinely tell us they “had a survey” when what they had was a lender’s valuation. The two reports are written for different readers, to different scopes, with different consequences if something is missed.
Quick answer: A mortgage surveyor looks at whether the property is adequate security for the loan. They assess type, size, age, construction, location and comparable sales to form a value, and note only obvious defects that would affect that value or the lender’s ability to resell. They are not inspecting the property on your behalf.
The report is not written for you
A mortgage valuation is commissioned by the lender to protect the lender. The question it answers is narrow: if this borrower stops paying and we have to sell, is the property worth enough, and is there anything about it that would make it hard to sell?
You usually pay for it. That does not make you the client. Many lenders pass a copy of the valuation to the borrower and many do not, and where they do, what you receive is often a summary figure rather than the surveyor’s reasoning.
It is also worth knowing that if your lender or estate agent recommends a surveyor, they must tell you whether they receive a referral fee, and you are not obliged to use them. Your own survey is your own choice.
What does a mortgage surveyor look for on the day?
The inspection is a valuation exercise with a condition element bolted on, not the other way round. In practice the surveyor is working through a fairly short list.
- Property type, age and construction. Standard brick-and-block behaves predictably. Concrete, steel frame, timber frame, thatch or anything designated defective changes the lending decision, not just the number.
- Size and accommodation. Room count, layout, whether the floor area supports the price, and whether any of it was added without consent.
- Location and comparables. Recent sales of similar properties nearby are the backbone of the figure. This is why a valuation on a unique property is harder than on an estate house.
- Obvious defects affecting value. Significant cracking, visible movement, an obviously failed roof covering, serious damp staining, Japanese knotweed within sight of the boundary.
- Tenure and legal red flags. Short leases, shared access, flying freeholds, unregistered extensions and anything that narrows the pool of future buyers.
- Essential repairs. Where something must be dealt with, the lender may impose a retention or make the offer conditional on the work being completed.
What it does not look at — and this is the point
The list of what a mortgage valuation ignores is longer than the list of what it covers.
The surveyor does not lift carpets, move furniture, enter the loft properly, open up drainage chambers, test services, or inspect the roof space and timbers in any detail. They are not looking for the things that cost you money in year two: perished wall ties, dry rot behind a skirting, an unvented roof void, spray foam in the loft, a failing damp-proof course, woodworm in floor joists.
None of that is a criticism of the surveyor. It is the scope they were instructed to work to. A valuation that returns the price you agreed is not a clean bill of health, and it was never intended to be read as one. If you want to know what is actually wrong with the building, that is a separate instruction — and it is the one we spend most of our week doing.
Three ways the valuation gets done
Not every mortgage valuation involves anyone visiting the house, which surprises a lot of buyers.
| Method | What happens | Typically used when |
|---|---|---|
| Physical inspection | A surveyor attends and walks the property inside and out | Higher loan-to-value, older or unusual property, anything flagged |
| Drive-by (external) | External inspection only, from the road | Lower loan-to-value on a conventional property |
| Desktop or automated | Data and comparables only, no attendance | Low loan-to-value, modern standard housing, remortgages |
Where a surveyor does attend, expect it to be brief. In our experience a lender’s inspection on a standard house is a walk-round measured in tens of minutes, not hours, because the scope does not require more.
How long it takes, and what happens next
The visit is quick; the paperwork sets the pace. The report goes to the lender rather than to you, and the mortgage offer follows once the underwriter has read it, assuming nothing has been flagged.
Three outcomes are common. The valuation supports the agreed price and the offer proceeds. The valuation comes in below the agreed price, which changes the loan-to-value and usually restarts the negotiation — we have set out what to do in that situation in our guide on what happens when a property is down-valued. Or the valuation is made subject to a retention or a specialist report, which is the lender saying it wants somebody qualified to look properly at something it noticed.
That third outcome is the tell. When a lender asks for a damp and timber report or a structural engineer’s opinion, the valuation has done its job — it has spotted that there is a question, and declined to answer it.
Where a valuation, a Level 2 and a Level 3 actually sit
The RICS consumer guidance is the clearest summary of the difference. A Level 2 Home Survey can be taken as survey-only or as survey and valuation, and a Level 3 is the most comprehensive report, with advice on repairs and an opinion on likely hidden defects.
| Report | Written for | Tells you |
|---|---|---|
| Mortgage valuation | The lender | Whether the property is adequate security, and a value |
| RICS Level 2 | You | Condition-rated inspection of the accessible parts, with a valuation if requested |
| RICS Level 3 | You | Detailed inspection, causes of defects, repair advice, opinion on hidden problems |
If you are choosing between the two survey levels rather than between a survey and a valuation, our comparison of a Level 2 and a Level 3 survey goes through it property type by property type.
What this means in Lincoln and Lincolnshire
A desktop or drive-by valuation is a reasonable tool on a 2015 estate house in North Hykeham. It is a much weaker one across a lot of our patch.
Lincoln’s uphill limestone terraces, the fen-edge villages around Sleaford, converted barns in the Wolds, Stamford’s listed stock and Nottinghamshire’s former coalfield housing all have condition issues a comparables model cannot see. Where the property is old, altered, rural or built in anything other than cavity masonry, the gap between what the lender needed to know and what you need to know is at its widest.
That is the moment to instruct your own surveyor rather than to assume the lender’s one has covered it.
Want a report written for you, not your lender?
We are RICS Registered Valuers and surveyors covering Lincoln, Lincolnshire and Nottinghamshire, and we carry out Level 2 and Level 3 home surveys as well as valuations. Fees are quoted per property once we know the address, age and size — we do not quote from a postcode alone.
See our RICS Level 2 home survey, read about the Level 3 building survey, or get in touch with the team.
Is a mortgage valuation the same as a survey?
No. A mortgage valuation is carried out for the lender to confirm the property is adequate security for the loan. A survey is instructed by you, inspects the property in far more detail, and reports on condition and defects. Government homebuying guidance treats them as two separate steps for that reason.
Do I get a copy of the mortgage valuation?
It depends on the lender. Some pass a copy or a summary to the borrower and some do not, because the report is prepared for the lender rather than for you. Even where you receive it, it will not contain the condition detail a survey would.
Does a mortgage surveyor go inside the property?
Not always. Lenders use physical inspections, external drive-by inspections and desktop or automated valuations depending on the loan-to-value and the type of property. A modern house with a large deposit may never be visited; an older or unusual property almost always is.
The mortgage valuation was fine — do I still need a survey?
A satisfactory valuation only tells you the lender is content with its security. It is not a condition report and does not cover roof spaces, services, drainage or concealed defects. On anything older, altered or non-standard, an independent survey is the only report written to answer the questions a buyer actually has.
