A RICS Level 3 Survey provides the most detailed assessment of a property’s condition, offering in-depth analysis and professional guidance for more complex purchases.
This survey is designed for buyers who need a thorough understanding of a building’s structure, materials, and potential repair requirements before committing to a purchase.
A RICS Level 3 survey is the most detailed home survey available. It examines a property’s construction and condition in depth, explains why defects have happened, and sets out what repair involves. It suits older, altered or unusual buildings, and where agreed it can include estimated repair costs.
It is carried out in line with the RICS Home Survey Standard. The inspection remains visual and non-invasive — we do not open up the structure — but it is more thorough than a Level 2: it describes the risk of hidden defects, gives the most probable cause of each problem rather than simply recording that it exists, and recommends what to do next.
You may see it called a Level 3 building survey, a full building survey or, in older language, a full structural survey. They describe the same thing.
Choose a Level 3 survey when the building is complicated, old, or already showing signs of trouble. In practice that means:
If the property is modern, conventional and in reasonable order, a RICS Level 2 survey is usually sufficient. We will say so rather than sell you the larger report.
A detailed, non-invasive inspection of everything safe and reasonably accessible.
Walls, roofs, floors, ceilings, windows, doors and permanent outbuildings, assessed for condition and for how the building has been put together.
Accessible roof voids and subfloor areas are examined in detail for structural condition, timber decay, insulation and ventilation, because this is where problems in older buildings tend to hide.
Each defect is identified, explained and rated for seriousness — not just what is wrong, but why it has happened and whether it is still moving.
Visual review of heating, plumbing, drainage and electrical installations, flagging visible concerns and apparent age. We do not test them.
Advice on appropriate remedial work, the likely order of priority and ongoing maintenance, with estimated costs and likely timescales where agreed.
Where a specialist is needed — a structural engineer, a drainage survey, a timber specialist — the report says so and explains why. It also flags issues likely to worsen if left.
On an older property, some of these are near-certain. The value of the report is not that it finds problems — it is that it tells you which ones matter, which are cosmetic, and what putting them right actually involves.
Any limitation on the inspection is stated plainly in the report, along with what we recommend doing about it before exchange.
The difference is depth. A Level 2 reports the condition of what can be seen. A Level 3 investigates how the building works, why defects have occurred and what repair involves.
| RICS Level 2 | RICS Level 3 | |
|---|---|---|
| Best for | Conventional homes in reasonable condition | Older, listed, altered or unusual properties |
| Inspection | Visual inspection of accessible areas | More thorough inspection, including the likely causes of defects |
| Depth | Condition, rated 1, 2 or 3 | Detailed advice on condition, construction and hidden risks |
| Repair advice | What needs attention and how urgently | What repair involves and, where agreed, estimated costs and timescales |
If you are unsure, tell us about the property and we will advise. It is not in our interest to sell you a Level 3 you do not need.
In everyday use, yes. “Full structural survey” is the older term for what RICS now calls a Level 3 survey, and most people asking for one mean exactly this report.
There is one distinction worth knowing. A Level 3 survey is carried out by a chartered surveyor and covers the whole building — structure, fabric, services and condition. A structural engineer’s report is a narrower, calculation-based assessment of a specific structural question, such as whether a particular wall can be removed or what is causing a crack. If your Level 3 survey finds movement that needs numbers put to it, we will tell you to instruct an engineer, and why.
You can add an independent market valuation from our RICS-registered valuers. On a Level 3 property it is often worth it: older and altered homes are harder to compare, and the lender’s valuation is prepared for the lender, not for you.
Where the survey has identified significant repair, a valuation gives you a defensible figure to negotiate against rather than an estimate.
The fee depends on the property and on the service you choose, including whether you add a market valuation. Tell us about the property and we will confirm a fixed fee before you commit.
A Level 3 inspection takes longer than a Level 2, and how long depends on the size, age and complexity of the property. We confirm the inspection date and when to expect your report at the point of booking. Arranging access with the agent is usually what sets the date.
Your report follows the RICS Home Survey format, with photographs throughout. It is set out in clear sections:
Once you have read it, you can discuss it with us. On a Level 3 report that conversation is often the most valuable part.
We carry out Level 3 surveys from our office in Chessington, across London and the South Eas. Much of our Level 3 work is on older and altered housing: period terraces, converted flats and extended family homes.
Local knowledge matters more on a Level 3 than on any other survey. Knowing how a particular era of terrace was built, what the local ground conditions do to foundations, and which alterations are common in an area shapes what a surveyor looks for.
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On an older, altered or unusual property, almost always: it explains the likely cause of each problem and what putting it right involves before you are committed. On a modern, conventional home in good order, it is usually unnecessary.
Usually yes. Victorian houses have solid walls, original roof timbers and, very often, a century of alterations. A Level 3 explains how those elements are performing rather than simply noting their condition.
Yes, where they are safely accessible. A Level 2 also looks into accessible roof spaces; a Level 3 examines them in more detail and explains the likely cause of anything found.
It will identify movement, assess whether it appears historic or ongoing, and explain the likely cause. Where the question needs structural calculations, the report will recommend a structural engineer and explain why.
Not as standard. You can add an independent market valuation, which is prepared for you rather than for your lender.
As soon as your offer is accepted. Arranging access with the agent is usually what sets the date, so booking early helps.
Tell us about the property and we will confirm whether a Level 3 is the right choice and a fixed fee before you commit, with a surveyor you can talk it through with afterwards.
